Run add-symbol test on mips
[deliverable/binutils-gdb.git] / binutils / objcopy.c
1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright (C) 1991-2015 Free Software Foundation, Inc.
3
4 This file is part of GNU Binutils.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
19 02110-1301, USA. */
20 \f
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "progress.h"
24 #include "getopt.h"
25 #include "libiberty.h"
26 #include "bucomm.h"
27 #include "budbg.h"
28 #include "filenames.h"
29 #include "fnmatch.h"
30 #include "elf-bfd.h"
31 #include "libbfd.h"
32 #include "coff/internal.h"
33 #include "libcoff.h"
34
35 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
36 header in generic PE code. */
37 #include "coff/i386.h"
38 #include "coff/pe.h"
39
40 static bfd_vma pe_file_alignment = (bfd_vma) -1;
41 static bfd_vma pe_heap_commit = (bfd_vma) -1;
42 static bfd_vma pe_heap_reserve = (bfd_vma) -1;
43 static bfd_vma pe_image_base = (bfd_vma) -1;
44 static bfd_vma pe_section_alignment = (bfd_vma) -1;
45 static bfd_vma pe_stack_commit = (bfd_vma) -1;
46 static bfd_vma pe_stack_reserve = (bfd_vma) -1;
47 static short pe_subsystem = -1;
48 static short pe_major_subsystem_version = -1;
49 static short pe_minor_subsystem_version = -1;
50
51 struct is_specified_symbol_predicate_data
52 {
53 const char * name;
54 bfd_boolean found;
55 };
56
57 /* A list to support redefine_sym. */
58 struct redefine_node
59 {
60 char *source;
61 char *target;
62 struct redefine_node *next;
63 };
64
65 struct addsym_node
66 {
67 struct addsym_node *next;
68 char * symdef;
69 long symval;
70 flagword flags;
71 char * section;
72 char * othersym;
73 };
74
75 typedef struct section_rename
76 {
77 const char * old_name;
78 const char * new_name;
79 flagword flags;
80 struct section_rename * next;
81 }
82 section_rename;
83
84 /* List of sections to be renamed. */
85 static section_rename *section_rename_list;
86
87 static asymbol **isympp = NULL; /* Input symbols. */
88 static asymbol **osympp = NULL; /* Output symbols that survive stripping. */
89
90 /* If `copy_byte' >= 0, copy 'copy_width' byte(s) of every `interleave' bytes. */
91 static int copy_byte = -1;
92 static int interleave = 0; /* Initialised to 4 in copy_main(). */
93 static int copy_width = 1;
94
95 static bfd_boolean verbose; /* Print file and target names. */
96 static bfd_boolean preserve_dates; /* Preserve input file timestamp. */
97 static int deterministic = -1; /* Enable deterministic archives. */
98 static int status = 0; /* Exit status. */
99
100 enum strip_action
101 {
102 STRIP_UNDEF,
103 STRIP_NONE, /* Don't strip. */
104 STRIP_DEBUG, /* Strip all debugger symbols. */
105 STRIP_UNNEEDED, /* Strip unnecessary symbols. */
106 STRIP_NONDEBUG, /* Strip everything but debug info. */
107 STRIP_DWO, /* Strip all DWO info. */
108 STRIP_NONDWO, /* Strip everything but DWO info. */
109 STRIP_ALL /* Strip all symbols. */
110 };
111
112 /* Which symbols to remove. */
113 static enum strip_action strip_symbols = STRIP_UNDEF;
114
115 enum locals_action
116 {
117 LOCALS_UNDEF,
118 LOCALS_START_L, /* Discard locals starting with L. */
119 LOCALS_ALL /* Discard all locals. */
120 };
121
122 /* Which local symbols to remove. Overrides STRIP_ALL. */
123 static enum locals_action discard_locals;
124
125 /* Structure used to hold lists of sections and actions to take. */
126 struct section_list
127 {
128 struct section_list * next; /* Next section to change. */
129 const char * pattern; /* Section name pattern. */
130 bfd_boolean used; /* Whether this entry was used. */
131
132 unsigned int context; /* What to do with matching sections. */
133 /* Flag bits used in the context field.
134 COPY and REMOVE are mutually exlusive. SET and ALTER are mutually exclusive. */
135 #define SECTION_CONTEXT_REMOVE (1 << 0) /* Remove this section. */
136 #define SECTION_CONTEXT_COPY (1 << 1) /* Copy this section, delete all non-copied section. */
137 #define SECTION_CONTEXT_SET_VMA (1 << 2) /* Set the sections' VMA address. */
138 #define SECTION_CONTEXT_ALTER_VMA (1 << 3) /* Increment or decrement the section's VMA address. */
139 #define SECTION_CONTEXT_SET_LMA (1 << 4) /* Set the sections' LMA address. */
140 #define SECTION_CONTEXT_ALTER_LMA (1 << 5) /* Increment or decrement the section's LMA address. */
141 #define SECTION_CONTEXT_SET_FLAGS (1 << 6) /* Set the section's flags. */
142
143 bfd_vma vma_val; /* Amount to change by or set to. */
144 bfd_vma lma_val; /* Amount to change by or set to. */
145 flagword flags; /* What to set the section flags to. */
146 };
147
148 static struct section_list *change_sections;
149
150 /* TRUE if some sections are to be removed. */
151 static bfd_boolean sections_removed;
152
153 /* TRUE if only some sections are to be copied. */
154 static bfd_boolean sections_copied;
155
156 /* Changes to the start address. */
157 static bfd_vma change_start = 0;
158 static bfd_boolean set_start_set = FALSE;
159 static bfd_vma set_start;
160
161 /* Changes to section addresses. */
162 static bfd_vma change_section_address = 0;
163
164 /* Filling gaps between sections. */
165 static bfd_boolean gap_fill_set = FALSE;
166 static bfd_byte gap_fill = 0;
167
168 /* Pad to a given address. */
169 static bfd_boolean pad_to_set = FALSE;
170 static bfd_vma pad_to;
171
172 /* Use alternative machine code? */
173 static unsigned long use_alt_mach_code = 0;
174
175 /* Output BFD flags user wants to set or clear */
176 static flagword bfd_flags_to_set;
177 static flagword bfd_flags_to_clear;
178
179 /* List of sections to add. */
180 struct section_add
181 {
182 /* Next section to add. */
183 struct section_add *next;
184 /* Name of section to add. */
185 const char *name;
186 /* Name of file holding section contents. */
187 const char *filename;
188 /* Size of file. */
189 size_t size;
190 /* Contents of file. */
191 bfd_byte *contents;
192 /* BFD section, after it has been added. */
193 asection *section;
194 };
195
196 /* List of sections to add to the output BFD. */
197 static struct section_add *add_sections;
198
199 /* List of sections to update in the output BFD. */
200 static struct section_add *update_sections;
201
202 /* List of sections to dump from the output BFD. */
203 static struct section_add *dump_sections;
204
205 /* If non-NULL the argument to --add-gnu-debuglink.
206 This should be the filename to store in the .gnu_debuglink section. */
207 static const char * gnu_debuglink_filename = NULL;
208
209 /* Whether to convert debugging information. */
210 static bfd_boolean convert_debugging = FALSE;
211
212 /* Whether to compress/decompress DWARF debug sections. */
213 static enum
214 {
215 nothing = 0,
216 compress = 1 << 0,
217 compress_zlib = compress | 1 << 1,
218 compress_gnu_zlib = compress | 1 << 2,
219 compress_gabi_zlib = compress | 1 << 3,
220 decompress = 1 << 4
221 } do_debug_sections = nothing;
222
223 /* Whether to change the leading character in symbol names. */
224 static bfd_boolean change_leading_char = FALSE;
225
226 /* Whether to remove the leading character from global symbol names. */
227 static bfd_boolean remove_leading_char = FALSE;
228
229 /* Whether to permit wildcard in symbol comparison. */
230 static bfd_boolean wildcard = FALSE;
231
232 /* True if --localize-hidden is in effect. */
233 static bfd_boolean localize_hidden = FALSE;
234
235 /* List of symbols to strip, keep, localize, keep-global, weaken,
236 or redefine. */
237 static htab_t strip_specific_htab = NULL;
238 static htab_t strip_unneeded_htab = NULL;
239 static htab_t keep_specific_htab = NULL;
240 static htab_t localize_specific_htab = NULL;
241 static htab_t globalize_specific_htab = NULL;
242 static htab_t keepglobal_specific_htab = NULL;
243 static htab_t weaken_specific_htab = NULL;
244 static struct redefine_node *redefine_sym_list = NULL;
245 static struct addsym_node *add_sym_list = NULL, **add_sym_tail = &add_sym_list;
246 static int add_symbols = 0;
247
248 /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
249 static bfd_boolean weaken = FALSE;
250
251 /* If this is TRUE, we retain BSF_FILE symbols. */
252 static bfd_boolean keep_file_symbols = FALSE;
253
254 /* Prefix symbols/sections. */
255 static char *prefix_symbols_string = 0;
256 static char *prefix_sections_string = 0;
257 static char *prefix_alloc_sections_string = 0;
258
259 /* True if --extract-symbol was passed on the command line. */
260 static bfd_boolean extract_symbol = FALSE;
261
262 /* If `reverse_bytes' is nonzero, then reverse the order of every chunk
263 of <reverse_bytes> bytes within each output section. */
264 static int reverse_bytes = 0;
265
266 /* For Coff objects, we may want to allow or disallow long section names,
267 or preserve them where found in the inputs. Debug info relies on them. */
268 enum long_section_name_handling
269 {
270 DISABLE,
271 ENABLE,
272 KEEP
273 };
274
275 /* The default long section handling mode is to preserve them.
276 This is also the only behaviour for 'strip'. */
277 static enum long_section_name_handling long_section_names = KEEP;
278
279 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
280 enum command_line_switch
281 {
282 OPTION_ADD_SECTION=150,
283 OPTION_ADD_GNU_DEBUGLINK,
284 OPTION_ADD_SYMBOL,
285 OPTION_ALT_MACH_CODE,
286 OPTION_CHANGE_ADDRESSES,
287 OPTION_CHANGE_LEADING_CHAR,
288 OPTION_CHANGE_SECTION_ADDRESS,
289 OPTION_CHANGE_SECTION_LMA,
290 OPTION_CHANGE_SECTION_VMA,
291 OPTION_CHANGE_START,
292 OPTION_CHANGE_WARNINGS,
293 OPTION_COMPRESS_DEBUG_SECTIONS,
294 OPTION_DEBUGGING,
295 OPTION_DECOMPRESS_DEBUG_SECTIONS,
296 OPTION_DUMP_SECTION,
297 OPTION_EXTRACT_DWO,
298 OPTION_EXTRACT_SYMBOL,
299 OPTION_FILE_ALIGNMENT,
300 OPTION_FORMATS_INFO,
301 OPTION_GAP_FILL,
302 OPTION_GLOBALIZE_SYMBOL,
303 OPTION_GLOBALIZE_SYMBOLS,
304 OPTION_HEAP,
305 OPTION_IMAGE_BASE,
306 OPTION_IMPURE,
307 OPTION_INTERLEAVE_WIDTH,
308 OPTION_KEEPGLOBAL_SYMBOLS,
309 OPTION_KEEP_FILE_SYMBOLS,
310 OPTION_KEEP_SYMBOLS,
311 OPTION_LOCALIZE_HIDDEN,
312 OPTION_LOCALIZE_SYMBOLS,
313 OPTION_LONG_SECTION_NAMES,
314 OPTION_NO_CHANGE_WARNINGS,
315 OPTION_ONLY_KEEP_DEBUG,
316 OPTION_PAD_TO,
317 OPTION_PREFIX_ALLOC_SECTIONS,
318 OPTION_PREFIX_SECTIONS,
319 OPTION_PREFIX_SYMBOLS,
320 OPTION_PURE,
321 OPTION_READONLY_TEXT,
322 OPTION_REDEFINE_SYM,
323 OPTION_REDEFINE_SYMS,
324 OPTION_REMOVE_LEADING_CHAR,
325 OPTION_RENAME_SECTION,
326 OPTION_REVERSE_BYTES,
327 OPTION_SECTION_ALIGNMENT,
328 OPTION_SET_SECTION_FLAGS,
329 OPTION_SET_START,
330 OPTION_SREC_FORCES3,
331 OPTION_SREC_LEN,
332 OPTION_STACK,
333 OPTION_STRIP_DWO,
334 OPTION_STRIP_SYMBOLS,
335 OPTION_STRIP_UNNEEDED,
336 OPTION_STRIP_UNNEEDED_SYMBOL,
337 OPTION_STRIP_UNNEEDED_SYMBOLS,
338 OPTION_SUBSYSTEM,
339 OPTION_UPDATE_SECTION,
340 OPTION_WEAKEN,
341 OPTION_WEAKEN_SYMBOLS,
342 OPTION_WRITABLE_TEXT
343 };
344
345 /* Options to handle if running as "strip". */
346
347 static struct option strip_options[] =
348 {
349 {"disable-deterministic-archives", no_argument, 0, 'U'},
350 {"discard-all", no_argument, 0, 'x'},
351 {"discard-locals", no_argument, 0, 'X'},
352 {"enable-deterministic-archives", no_argument, 0, 'D'},
353 {"format", required_argument, 0, 'F'}, /* Obsolete */
354 {"help", no_argument, 0, 'h'},
355 {"info", no_argument, 0, OPTION_FORMATS_INFO},
356 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
357 {"input-target", required_argument, 0, 'I'},
358 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
359 {"keep-symbol", required_argument, 0, 'K'},
360 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
361 {"output-file", required_argument, 0, 'o'},
362 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
363 {"output-target", required_argument, 0, 'O'},
364 {"preserve-dates", no_argument, 0, 'p'},
365 {"remove-section", required_argument, 0, 'R'},
366 {"strip-all", no_argument, 0, 's'},
367 {"strip-debug", no_argument, 0, 'S'},
368 {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO},
369 {"strip-symbol", required_argument, 0, 'N'},
370 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
371 {"target", required_argument, 0, 'F'},
372 {"verbose", no_argument, 0, 'v'},
373 {"version", no_argument, 0, 'V'},
374 {"wildcard", no_argument, 0, 'w'},
375 {0, no_argument, 0, 0}
376 };
377
378 /* Options to handle if running as "objcopy". */
379
380 static struct option copy_options[] =
381 {
382 {"add-gnu-debuglink", required_argument, 0, OPTION_ADD_GNU_DEBUGLINK},
383 {"add-section", required_argument, 0, OPTION_ADD_SECTION},
384 {"add-symbol", required_argument, 0, OPTION_ADD_SYMBOL},
385 {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
386 {"adjust-start", required_argument, 0, OPTION_CHANGE_START},
387 {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES},
388 {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
389 {"alt-machine-code", required_argument, 0, OPTION_ALT_MACH_CODE},
390 {"binary-architecture", required_argument, 0, 'B'},
391 {"byte", required_argument, 0, 'b'},
392 {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES},
393 {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR},
394 {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
395 {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA},
396 {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA},
397 {"change-start", required_argument, 0, OPTION_CHANGE_START},
398 {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
399 {"compress-debug-sections", optional_argument, 0, OPTION_COMPRESS_DEBUG_SECTIONS},
400 {"debugging", no_argument, 0, OPTION_DEBUGGING},
401 {"decompress-debug-sections", no_argument, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS},
402 {"disable-deterministic-archives", no_argument, 0, 'U'},
403 {"discard-all", no_argument, 0, 'x'},
404 {"discard-locals", no_argument, 0, 'X'},
405 {"dump-section", required_argument, 0, OPTION_DUMP_SECTION},
406 {"enable-deterministic-archives", no_argument, 0, 'D'},
407 {"extract-dwo", no_argument, 0, OPTION_EXTRACT_DWO},
408 {"extract-symbol", no_argument, 0, OPTION_EXTRACT_SYMBOL},
409 {"file-alignment", required_argument, 0, OPTION_FILE_ALIGNMENT},
410 {"format", required_argument, 0, 'F'}, /* Obsolete */
411 {"gap-fill", required_argument, 0, OPTION_GAP_FILL},
412 {"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL},
413 {"globalize-symbols", required_argument, 0, OPTION_GLOBALIZE_SYMBOLS},
414 {"heap", required_argument, 0, OPTION_HEAP},
415 {"help", no_argument, 0, 'h'},
416 {"image-base", required_argument, 0 , OPTION_IMAGE_BASE},
417 {"impure", no_argument, 0, OPTION_IMPURE},
418 {"info", no_argument, 0, OPTION_FORMATS_INFO},
419 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
420 {"input-target", required_argument, 0, 'I'},
421 {"interleave", optional_argument, 0, 'i'},
422 {"interleave-width", required_argument, 0, OPTION_INTERLEAVE_WIDTH},
423 {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS},
424 {"keep-global-symbol", required_argument, 0, 'G'},
425 {"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS},
426 {"keep-symbol", required_argument, 0, 'K'},
427 {"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS},
428 {"localize-hidden", no_argument, 0, OPTION_LOCALIZE_HIDDEN},
429 {"localize-symbol", required_argument, 0, 'L'},
430 {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS},
431 {"long-section-names", required_argument, 0, OPTION_LONG_SECTION_NAMES},
432 {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
433 {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
434 {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG},
435 {"only-section", required_argument, 0, 'j'},
436 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
437 {"output-target", required_argument, 0, 'O'},
438 {"pad-to", required_argument, 0, OPTION_PAD_TO},
439 {"prefix-alloc-sections", required_argument, 0, OPTION_PREFIX_ALLOC_SECTIONS},
440 {"prefix-sections", required_argument, 0, OPTION_PREFIX_SECTIONS},
441 {"prefix-symbols", required_argument, 0, OPTION_PREFIX_SYMBOLS},
442 {"preserve-dates", no_argument, 0, 'p'},
443 {"pure", no_argument, 0, OPTION_PURE},
444 {"readonly-text", no_argument, 0, OPTION_READONLY_TEXT},
445 {"redefine-sym", required_argument, 0, OPTION_REDEFINE_SYM},
446 {"redefine-syms", required_argument, 0, OPTION_REDEFINE_SYMS},
447 {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR},
448 {"remove-section", required_argument, 0, 'R'},
449 {"rename-section", required_argument, 0, OPTION_RENAME_SECTION},
450 {"reverse-bytes", required_argument, 0, OPTION_REVERSE_BYTES},
451 {"section-alignment", required_argument, 0, OPTION_SECTION_ALIGNMENT},
452 {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS},
453 {"set-start", required_argument, 0, OPTION_SET_START},
454 {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3},
455 {"srec-len", required_argument, 0, OPTION_SREC_LEN},
456 {"stack", required_argument, 0, OPTION_STACK},
457 {"strip-all", no_argument, 0, 'S'},
458 {"strip-debug", no_argument, 0, 'g'},
459 {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO},
460 {"strip-symbol", required_argument, 0, 'N'},
461 {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS},
462 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
463 {"strip-unneeded-symbol", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOL},
464 {"strip-unneeded-symbols", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOLS},
465 {"subsystem", required_argument, 0, OPTION_SUBSYSTEM},
466 {"target", required_argument, 0, 'F'},
467 {"update-section", required_argument, 0, OPTION_UPDATE_SECTION},
468 {"verbose", no_argument, 0, 'v'},
469 {"version", no_argument, 0, 'V'},
470 {"weaken", no_argument, 0, OPTION_WEAKEN},
471 {"weaken-symbol", required_argument, 0, 'W'},
472 {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS},
473 {"wildcard", no_argument, 0, 'w'},
474 {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT},
475 {0, no_argument, 0, 0}
476 };
477
478 /* IMPORTS */
479 extern char *program_name;
480
481 /* This flag distinguishes between strip and objcopy:
482 1 means this is 'strip'; 0 means this is 'objcopy'.
483 -1 means if we should use argv[0] to decide. */
484 extern int is_strip;
485
486 /* The maximum length of an S record. This variable is declared in srec.c
487 and can be modified by the --srec-len parameter. */
488 extern unsigned int Chunk;
489
490 /* Restrict the generation of Srecords to type S3 only.
491 This variable is declare in bfd/srec.c and can be toggled
492 on by the --srec-forceS3 command line switch. */
493 extern bfd_boolean S3Forced;
494
495 /* Forward declarations. */
496 static void setup_section (bfd *, asection *, void *);
497 static void setup_bfd_headers (bfd *, bfd *);
498 static void copy_relocations_in_section (bfd *, asection *, void *);
499 static void copy_section (bfd *, asection *, void *);
500 static void get_sections (bfd *, asection *, void *);
501 static int compare_section_lma (const void *, const void *);
502 static void mark_symbols_used_in_relocations (bfd *, asection *, void *);
503 static bfd_boolean write_debugging_info (bfd *, void *, long *, asymbol ***);
504 static const char *lookup_sym_redefinition (const char *);
505 \f
506 static void
507 copy_usage (FILE *stream, int exit_status)
508 {
509 fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
510 fprintf (stream, _(" Copies a binary file, possibly transforming it in the process\n"));
511 fprintf (stream, _(" The options are:\n"));
512 fprintf (stream, _("\
513 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
514 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
515 -B --binary-architecture <arch> Set output arch, when input is arch-less\n\
516 -F --target <bfdname> Set both input and output format to <bfdname>\n\
517 --debugging Convert debugging information, if possible\n\
518 -p --preserve-dates Copy modified/access timestamps to the output\n"));
519 if (DEFAULT_AR_DETERMINISTIC)
520 fprintf (stream, _("\
521 -D --enable-deterministic-archives\n\
522 Produce deterministic output when stripping archives (default)\n\
523 -U --disable-deterministic-archives\n\
524 Disable -D behavior\n"));
525 else
526 fprintf (stream, _("\
527 -D --enable-deterministic-archives\n\
528 Produce deterministic output when stripping archives\n\
529 -U --disable-deterministic-archives\n\
530 Disable -D behavior (default)\n"));
531 fprintf (stream, _("\
532 -j --only-section <name> Only copy section <name> into the output\n\
533 --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\
534 -R --remove-section <name> Remove section <name> from the output\n\
535 -S --strip-all Remove all symbol and relocation information\n\
536 -g --strip-debug Remove all debugging symbols & sections\n\
537 --strip-dwo Remove all DWO sections\n\
538 --strip-unneeded Remove all symbols not needed by relocations\n\
539 -N --strip-symbol <name> Do not copy symbol <name>\n\
540 --strip-unneeded-symbol <name>\n\
541 Do not copy symbol <name> unless needed by\n\
542 relocations\n\
543 --only-keep-debug Strip everything but the debug information\n\
544 --extract-dwo Copy only DWO sections\n\
545 --extract-symbol Remove section contents but keep symbols\n\
546 -K --keep-symbol <name> Do not strip symbol <name>\n\
547 --keep-file-symbols Do not strip file symbol(s)\n\
548 --localize-hidden Turn all ELF hidden symbols into locals\n\
549 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
550 --globalize-symbol <name> Force symbol <name> to be marked as a global\n\
551 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
552 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
553 --weaken Force all global symbols to be marked as weak\n\
554 -w --wildcard Permit wildcard in symbol comparison\n\
555 -x --discard-all Remove all non-global symbols\n\
556 -X --discard-locals Remove any compiler-generated symbols\n\
557 -i --interleave[=<number>] Only copy N out of every <number> bytes\n\
558 --interleave-width <number> Set N for --interleave\n\
559 -b --byte <num> Select byte <num> in every interleaved block\n\
560 --gap-fill <val> Fill gaps between sections with <val>\n\
561 --pad-to <addr> Pad the last section up to address <addr>\n\
562 --set-start <addr> Set the start address to <addr>\n\
563 {--change-start|--adjust-start} <incr>\n\
564 Add <incr> to the start address\n\
565 {--change-addresses|--adjust-vma} <incr>\n\
566 Add <incr> to LMA, VMA and start addresses\n\
567 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
568 Change LMA and VMA of section <name> by <val>\n\
569 --change-section-lma <name>{=|+|-}<val>\n\
570 Change the LMA of section <name> by <val>\n\
571 --change-section-vma <name>{=|+|-}<val>\n\
572 Change the VMA of section <name> by <val>\n\
573 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
574 Warn if a named section does not exist\n\
575 --set-section-flags <name>=<flags>\n\
576 Set section <name>'s properties to <flags>\n\
577 --add-section <name>=<file> Add section <name> found in <file> to output\n\
578 --update-section <name>=<file>\n\
579 Update contents of section <name> with\n\
580 contents found in <file>\n\
581 --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\
582 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
583 --long-section-names {enable|disable|keep}\n\
584 Handle long section names in Coff objects.\n\
585 --change-leading-char Force output format's leading character style\n\
586 --remove-leading-char Remove leading character from global symbols\n\
587 --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
588 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
589 --redefine-syms <file> --redefine-sym for all symbol pairs \n\
590 listed in <file>\n\
591 --srec-len <number> Restrict the length of generated Srecords\n\
592 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
593 --strip-symbols <file> -N for all symbols listed in <file>\n\
594 --strip-unneeded-symbols <file>\n\
595 --strip-unneeded-symbol for all symbols listed\n\
596 in <file>\n\
597 --keep-symbols <file> -K for all symbols listed in <file>\n\
598 --localize-symbols <file> -L for all symbols listed in <file>\n\
599 --globalize-symbols <file> --globalize-symbol for all in <file>\n\
600 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
601 --weaken-symbols <file> -W for all symbols listed in <file>\n\
602 --add-symbol <name>=[<section>:]<value>[,<flags>] Add a symbol\n\
603 --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
604 --writable-text Mark the output text as writable\n\
605 --readonly-text Make the output text write protected\n\
606 --pure Mark the output file as demand paged\n\
607 --impure Mark the output file as impure\n\
608 --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\
609 --prefix-sections <prefix> Add <prefix> to start of every section name\n\
610 --prefix-alloc-sections <prefix>\n\
611 Add <prefix> to start of every allocatable\n\
612 section name\n\
613 --file-alignment <num> Set PE file alignment to <num>\n\
614 --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\
615 <commit>\n\
616 --image-base <address> Set PE image base to <address>\n\
617 --section-alignment <num> Set PE section alignment to <num>\n\
618 --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\
619 <commit>\n\
620 --subsystem <name>[:<version>]\n\
621 Set PE subsystem to <name> [& <version>]\n\
622 --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
623 Compress DWARF debug sections using zlib\n\
624 --decompress-debug-sections Decompress DWARF debug sections using zlib\n\
625 -v --verbose List all object files modified\n\
626 @<file> Read options from <file>\n\
627 -V --version Display this program's version number\n\
628 -h --help Display this output\n\
629 --info List object formats & architectures supported\n\
630 "));
631 list_supported_targets (program_name, stream);
632 if (REPORT_BUGS_TO[0] && exit_status == 0)
633 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
634 exit (exit_status);
635 }
636
637 static void
638 strip_usage (FILE *stream, int exit_status)
639 {
640 fprintf (stream, _("Usage: %s <option(s)> in-file(s)\n"), program_name);
641 fprintf (stream, _(" Removes symbols and sections from files\n"));
642 fprintf (stream, _(" The options are:\n"));
643 fprintf (stream, _("\
644 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
645 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
646 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
647 -p --preserve-dates Copy modified/access timestamps to the output\n\
648 "));
649 if (DEFAULT_AR_DETERMINISTIC)
650 fprintf (stream, _("\
651 -D --enable-deterministic-archives\n\
652 Produce deterministic output when stripping archives (default)\n\
653 -U --disable-deterministic-archives\n\
654 Disable -D behavior\n"));
655 else
656 fprintf (stream, _("\
657 -D --enable-deterministic-archives\n\
658 Produce deterministic output when stripping archives\n\
659 -U --disable-deterministic-archives\n\
660 Disable -D behavior (default)\n"));
661 fprintf (stream, _("\
662 -R --remove-section=<name> Also remove section <name> from the output\n\
663 -s --strip-all Remove all symbol and relocation information\n\
664 -g -S -d --strip-debug Remove all debugging symbols & sections\n\
665 --strip-dwo Remove all DWO sections\n\
666 --strip-unneeded Remove all symbols not needed by relocations\n\
667 --only-keep-debug Strip everything but the debug information\n\
668 -N --strip-symbol=<name> Do not copy symbol <name>\n\
669 -K --keep-symbol=<name> Do not strip symbol <name>\n\
670 --keep-file-symbols Do not strip file symbol(s)\n\
671 -w --wildcard Permit wildcard in symbol comparison\n\
672 -x --discard-all Remove all non-global symbols\n\
673 -X --discard-locals Remove any compiler-generated symbols\n\
674 -v --verbose List all object files modified\n\
675 -V --version Display this program's version number\n\
676 -h --help Display this output\n\
677 --info List object formats & architectures supported\n\
678 -o <file> Place stripped output into <file>\n\
679 "));
680
681 list_supported_targets (program_name, stream);
682 if (REPORT_BUGS_TO[0] && exit_status == 0)
683 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
684 exit (exit_status);
685 }
686
687 /* Parse section flags into a flagword, with a fatal error if the
688 string can't be parsed. */
689
690 static flagword
691 parse_flags (const char *s)
692 {
693 flagword ret;
694 const char *snext;
695 int len;
696
697 ret = SEC_NO_FLAGS;
698
699 do
700 {
701 snext = strchr (s, ',');
702 if (snext == NULL)
703 len = strlen (s);
704 else
705 {
706 len = snext - s;
707 ++snext;
708 }
709
710 if (0) ;
711 #define PARSE_FLAG(fname,fval) \
712 else if (strncasecmp (fname, s, len) == 0) ret |= fval
713 PARSE_FLAG ("alloc", SEC_ALLOC);
714 PARSE_FLAG ("load", SEC_LOAD);
715 PARSE_FLAG ("noload", SEC_NEVER_LOAD);
716 PARSE_FLAG ("readonly", SEC_READONLY);
717 PARSE_FLAG ("debug", SEC_DEBUGGING);
718 PARSE_FLAG ("code", SEC_CODE);
719 PARSE_FLAG ("data", SEC_DATA);
720 PARSE_FLAG ("rom", SEC_ROM);
721 PARSE_FLAG ("share", SEC_COFF_SHARED);
722 PARSE_FLAG ("contents", SEC_HAS_CONTENTS);
723 PARSE_FLAG ("merge", SEC_MERGE);
724 PARSE_FLAG ("strings", SEC_STRINGS);
725 #undef PARSE_FLAG
726 else
727 {
728 char *copy;
729
730 copy = (char *) xmalloc (len + 1);
731 strncpy (copy, s, len);
732 copy[len] = '\0';
733 non_fatal (_("unrecognized section flag `%s'"), copy);
734 fatal (_("supported flags: %s"),
735 "alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings");
736 }
737
738 s = snext;
739 }
740 while (s != NULL);
741
742 return ret;
743 }
744
745 /* Parse symbol flags into a flagword, with a fatal error if the
746 string can't be parsed. */
747
748 static flagword
749 parse_symflags (const char *s, char **other)
750 {
751 flagword ret;
752 const char *snext;
753 int len;
754
755 ret = BSF_NO_FLAGS;
756
757 do
758 {
759 snext = strchr (s, ',');
760 if (snext == NULL)
761 len = strlen (s);
762 else
763 {
764 len = snext - s;
765 ++snext;
766 }
767
768 #define PARSE_FLAG(fname,fval) \
769 else if (len == (int) sizeof fname - 1 && strncasecmp (fname, s, len) == 0) \
770 ret |= fval
771
772 #define PARSE_OTHER(fname,fval) \
773 else if (len >= (int) sizeof fname && strncasecmp (fname, s, sizeof fname - 1) == 0) \
774 fval = strndup (s + sizeof fname - 1, len - sizeof fname + 1)
775
776 if (0) ;
777 PARSE_FLAG ("local", BSF_LOCAL);
778 PARSE_FLAG ("global", BSF_GLOBAL);
779 PARSE_FLAG ("export", BSF_EXPORT);
780 PARSE_FLAG ("debug", BSF_DEBUGGING);
781 PARSE_FLAG ("function", BSF_FUNCTION);
782 PARSE_FLAG ("weak", BSF_WEAK);
783 PARSE_FLAG ("section", BSF_SECTION_SYM);
784 PARSE_FLAG ("constructor", BSF_CONSTRUCTOR);
785 PARSE_FLAG ("warning", BSF_WARNING);
786 PARSE_FLAG ("indirect", BSF_INDIRECT);
787 PARSE_FLAG ("file", BSF_FILE);
788 PARSE_FLAG ("object", BSF_OBJECT);
789 PARSE_FLAG ("synthetic", BSF_SYNTHETIC);
790 PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION | BSF_FUNCTION);
791 PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE | BSF_OBJECT);
792 PARSE_OTHER ("before=", *other);
793
794 #undef PARSE_FLAG
795 #undef PARSE_OTHER
796 else
797 {
798 char *copy;
799
800 copy = (char *) xmalloc (len + 1);
801 strncpy (copy, s, len);
802 copy[len] = '\0';
803 non_fatal (_("unrecognized symbol flag `%s'"), copy);
804 fatal (_("supported flags: %s"),
805 "local, global, export, debug, function, weak, section, "
806 "constructor, warning, indirect, file, object, synthetic, "
807 "indirect-function, unique-object, before=<othersym>");
808 }
809
810 s = snext;
811 }
812 while (s != NULL);
813
814 return ret;
815 }
816
817 /* Find and optionally add an entry in the change_sections list.
818
819 We need to be careful in how we match section names because of the support
820 for wildcard characters. For example suppose that the user has invoked
821 objcopy like this:
822
823 --set-section-flags .debug_*=debug
824 --set-section-flags .debug_str=readonly,debug
825 --change-section-address .debug_*ranges=0x1000
826
827 With the idea that all debug sections will receive the DEBUG flag, the
828 .debug_str section will also receive the READONLY flag and the
829 .debug_ranges and .debug_aranges sections will have their address set to
830 0x1000. (This may not make much sense, but it is just an example).
831
832 When adding the section name patterns to the section list we need to make
833 sure that previous entries do not match with the new entry, unless the
834 match is exact. (In which case we assume that the user is overriding
835 the previous entry with the new context).
836
837 When matching real section names to the section list we make use of the
838 wildcard characters, but we must do so in context. Eg if we are setting
839 section addresses then we match for .debug_ranges but not for .debug_info.
840
841 Finally, if ADD is false and we do find a match, we mark the section list
842 entry as used. */
843
844 static struct section_list *
845 find_section_list (const char *name, bfd_boolean add, unsigned int context)
846 {
847 struct section_list *p;
848
849 /* assert ((context & ((1 << 7) - 1)) != 0); */
850
851 for (p = change_sections; p != NULL; p = p->next)
852 {
853 if (add)
854 {
855 if (strcmp (p->pattern, name) == 0)
856 {
857 /* Check for context conflicts. */
858 if (((p->context & SECTION_CONTEXT_REMOVE)
859 && (context & SECTION_CONTEXT_COPY))
860 || ((context & SECTION_CONTEXT_REMOVE)
861 && (p->context & SECTION_CONTEXT_COPY)))
862 fatal (_("error: %s both copied and removed"), name);
863
864 if (((p->context & SECTION_CONTEXT_SET_VMA)
865 && (context & SECTION_CONTEXT_ALTER_VMA))
866 || ((context & SECTION_CONTEXT_SET_VMA)
867 && (context & SECTION_CONTEXT_ALTER_VMA)))
868 fatal (_("error: %s both sets and alters VMA"), name);
869
870 if (((p->context & SECTION_CONTEXT_SET_LMA)
871 && (context & SECTION_CONTEXT_ALTER_LMA))
872 || ((context & SECTION_CONTEXT_SET_LMA)
873 && (context & SECTION_CONTEXT_ALTER_LMA)))
874 fatal (_("error: %s both sets and alters LMA"), name);
875
876 /* Extend the context. */
877 p->context |= context;
878 return p;
879 }
880 }
881 /* If we are not adding a new name/pattern then
882 only check for a match if the context applies. */
883 else if ((p->context & context)
884 /* We could check for the presence of wildchar characters
885 first and choose between calling strcmp and fnmatch,
886 but is that really worth it ? */
887 && fnmatch (p->pattern, name, 0) == 0)
888 {
889 p->used = TRUE;
890 return p;
891 }
892 }
893
894 if (! add)
895 return NULL;
896
897 p = (struct section_list *) xmalloc (sizeof (struct section_list));
898 p->pattern = name;
899 p->used = FALSE;
900 p->context = context;
901 p->vma_val = 0;
902 p->lma_val = 0;
903 p->flags = 0;
904 p->next = change_sections;
905 change_sections = p;
906
907 return p;
908 }
909
910 /* There is htab_hash_string but no htab_eq_string. Makes sense. */
911
912 static int
913 eq_string (const void *s1, const void *s2)
914 {
915 return strcmp ((const char *) s1, (const char *) s2) == 0;
916 }
917
918 static htab_t
919 create_symbol_htab (void)
920 {
921 return htab_create_alloc (16, htab_hash_string, eq_string, NULL, xcalloc, free);
922 }
923
924 static void
925 create_symbol_htabs (void)
926 {
927 strip_specific_htab = create_symbol_htab ();
928 strip_unneeded_htab = create_symbol_htab ();
929 keep_specific_htab = create_symbol_htab ();
930 localize_specific_htab = create_symbol_htab ();
931 globalize_specific_htab = create_symbol_htab ();
932 keepglobal_specific_htab = create_symbol_htab ();
933 weaken_specific_htab = create_symbol_htab ();
934 }
935
936 /* Add a symbol to strip_specific_list. */
937
938 static void
939 add_specific_symbol (const char *name, htab_t htab)
940 {
941 *htab_find_slot (htab, name, INSERT) = (char *) name;
942 }
943
944 /* Add symbols listed in `filename' to strip_specific_list. */
945
946 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
947 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
948
949 static void
950 add_specific_symbols (const char *filename, htab_t htab)
951 {
952 off_t size;
953 FILE * f;
954 char * line;
955 char * buffer;
956 unsigned int line_count;
957
958 size = get_file_size (filename);
959 if (size == 0)
960 {
961 status = 1;
962 return;
963 }
964
965 buffer = (char *) xmalloc (size + 2);
966 f = fopen (filename, FOPEN_RT);
967 if (f == NULL)
968 fatal (_("cannot open '%s': %s"), filename, strerror (errno));
969
970 if (fread (buffer, 1, size, f) == 0 || ferror (f))
971 fatal (_("%s: fread failed"), filename);
972
973 fclose (f);
974 buffer [size] = '\n';
975 buffer [size + 1] = '\0';
976
977 line_count = 1;
978
979 for (line = buffer; * line != '\0'; line ++)
980 {
981 char * eol;
982 char * name;
983 char * name_end;
984 int finished = FALSE;
985
986 for (eol = line;; eol ++)
987 {
988 switch (* eol)
989 {
990 case '\n':
991 * eol = '\0';
992 /* Cope with \n\r. */
993 if (eol[1] == '\r')
994 ++ eol;
995 finished = TRUE;
996 break;
997
998 case '\r':
999 * eol = '\0';
1000 /* Cope with \r\n. */
1001 if (eol[1] == '\n')
1002 ++ eol;
1003 finished = TRUE;
1004 break;
1005
1006 case 0:
1007 finished = TRUE;
1008 break;
1009
1010 case '#':
1011 /* Line comment, Terminate the line here, in case a
1012 name is present and then allow the rest of the
1013 loop to find the real end of the line. */
1014 * eol = '\0';
1015 break;
1016
1017 default:
1018 break;
1019 }
1020
1021 if (finished)
1022 break;
1023 }
1024
1025 /* A name may now exist somewhere between 'line' and 'eol'.
1026 Strip off leading whitespace and trailing whitespace,
1027 then add it to the list. */
1028 for (name = line; IS_WHITESPACE (* name); name ++)
1029 ;
1030 for (name_end = name;
1031 (! IS_WHITESPACE (* name_end))
1032 && (! IS_LINE_TERMINATOR (* name_end));
1033 name_end ++)
1034 ;
1035
1036 if (! IS_LINE_TERMINATOR (* name_end))
1037 {
1038 char * extra;
1039
1040 for (extra = name_end + 1; IS_WHITESPACE (* extra); extra ++)
1041 ;
1042
1043 if (! IS_LINE_TERMINATOR (* extra))
1044 non_fatal (_("%s:%d: Ignoring rubbish found on this line"),
1045 filename, line_count);
1046 }
1047
1048 * name_end = '\0';
1049
1050 if (name_end > name)
1051 add_specific_symbol (name, htab);
1052
1053 /* Advance line pointer to end of line. The 'eol ++' in the for
1054 loop above will then advance us to the start of the next line. */
1055 line = eol;
1056 line_count ++;
1057 }
1058 }
1059
1060 /* See whether a symbol should be stripped or kept
1061 based on strip_specific_list and keep_symbols. */
1062
1063 static int
1064 is_specified_symbol_predicate (void **slot, void *data)
1065 {
1066 struct is_specified_symbol_predicate_data *d =
1067 (struct is_specified_symbol_predicate_data *) data;
1068 const char *slot_name = (char *) *slot;
1069
1070 if (*slot_name != '!')
1071 {
1072 if (! fnmatch (slot_name, d->name, 0))
1073 {
1074 d->found = TRUE;
1075 /* Continue traversal, there might be a non-match rule. */
1076 return 1;
1077 }
1078 }
1079 else
1080 {
1081 if (! fnmatch (slot_name + 1, d->name, 0))
1082 {
1083 d->found = FALSE;
1084 /* Stop traversal. */
1085 return 0;
1086 }
1087 }
1088
1089 /* Continue traversal. */
1090 return 1;
1091 }
1092
1093 static bfd_boolean
1094 is_specified_symbol (const char *name, htab_t htab)
1095 {
1096 if (wildcard)
1097 {
1098 struct is_specified_symbol_predicate_data data;
1099
1100 data.name = name;
1101 data.found = FALSE;
1102
1103 htab_traverse (htab, is_specified_symbol_predicate, &data);
1104
1105 return data.found;
1106 }
1107
1108 return htab_find (htab, name) != NULL;
1109 }
1110
1111 /* Return a pointer to the symbol used as a signature for GROUP. */
1112
1113 static asymbol *
1114 group_signature (asection *group)
1115 {
1116 bfd *abfd = group->owner;
1117 Elf_Internal_Shdr *ghdr;
1118
1119 if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
1120 return NULL;
1121
1122 ghdr = &elf_section_data (group)->this_hdr;
1123 if (ghdr->sh_link < elf_numsections (abfd))
1124 {
1125 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1126 Elf_Internal_Shdr *symhdr = elf_elfsections (abfd) [ghdr->sh_link];
1127
1128 if (symhdr->sh_type == SHT_SYMTAB
1129 && ghdr->sh_info < symhdr->sh_size / bed->s->sizeof_sym)
1130 return isympp[ghdr->sh_info - 1];
1131 }
1132 return NULL;
1133 }
1134
1135 /* Return TRUE if the section is a DWO section. */
1136
1137 static bfd_boolean
1138 is_dwo_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1139 {
1140 const char *name = bfd_get_section_name (abfd, sec);
1141 int len = strlen (name);
1142
1143 return strncmp (name + len - 4, ".dwo", 4) == 0;
1144 }
1145
1146 /* Return TRUE if section SEC is in the update list. */
1147
1148 static bfd_boolean
1149 is_update_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1150 {
1151 if (update_sections != NULL)
1152 {
1153 struct section_add *pupdate;
1154
1155 for (pupdate = update_sections;
1156 pupdate != NULL;
1157 pupdate = pupdate->next)
1158 {
1159 if (strcmp (sec->name, pupdate->name) == 0)
1160 return TRUE;
1161 }
1162 }
1163
1164 return FALSE;
1165 }
1166
1167 /* See if a non-group section is being removed. */
1168
1169 static bfd_boolean
1170 is_strip_section_1 (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1171 {
1172 if (sections_removed || sections_copied)
1173 {
1174 struct section_list *p;
1175 struct section_list *q;
1176
1177 p = find_section_list (bfd_get_section_name (abfd, sec), FALSE,
1178 SECTION_CONTEXT_REMOVE);
1179 q = find_section_list (bfd_get_section_name (abfd, sec), FALSE,
1180 SECTION_CONTEXT_COPY);
1181
1182 if (p && q)
1183 fatal (_("error: section %s matches both remove and copy options"),
1184 bfd_get_section_name (abfd, sec));
1185 if (p && is_update_section (abfd, sec))
1186 fatal (_("error: section %s matches both update and remove options"),
1187 bfd_get_section_name (abfd, sec));
1188
1189 if (p != NULL)
1190 return TRUE;
1191 if (sections_copied && q == NULL)
1192 return TRUE;
1193 }
1194
1195 if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0)
1196 {
1197 if (strip_symbols == STRIP_DEBUG
1198 || strip_symbols == STRIP_UNNEEDED
1199 || strip_symbols == STRIP_ALL
1200 || discard_locals == LOCALS_ALL
1201 || convert_debugging)
1202 {
1203 /* By default we don't want to strip .reloc section.
1204 This section has for pe-coff special meaning. See
1205 pe-dll.c file in ld, and peXXigen.c in bfd for details. */
1206 if (strcmp (bfd_get_section_name (abfd, sec), ".reloc") != 0)
1207 return TRUE;
1208 }
1209
1210 if (strip_symbols == STRIP_DWO)
1211 return is_dwo_section (abfd, sec);
1212
1213 if (strip_symbols == STRIP_NONDEBUG)
1214 return FALSE;
1215 }
1216
1217 if (strip_symbols == STRIP_NONDWO)
1218 return !is_dwo_section (abfd, sec);
1219
1220 return FALSE;
1221 }
1222
1223 /* See if a section is being removed. */
1224
1225 static bfd_boolean
1226 is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1227 {
1228 if (is_strip_section_1 (abfd, sec))
1229 return TRUE;
1230
1231 if ((bfd_get_section_flags (abfd, sec) & SEC_GROUP) != 0)
1232 {
1233 asymbol *gsym;
1234 const char *gname;
1235 asection *elt, *first;
1236
1237 /* PR binutils/3181
1238 If we are going to strip the group signature symbol, then
1239 strip the group section too. */
1240 gsym = group_signature (sec);
1241 if (gsym != NULL)
1242 gname = gsym->name;
1243 else
1244 gname = sec->name;
1245 if ((strip_symbols == STRIP_ALL
1246 && !is_specified_symbol (gname, keep_specific_htab))
1247 || is_specified_symbol (gname, strip_specific_htab))
1248 return TRUE;
1249
1250 /* Remove the group section if all members are removed. */
1251 first = elt = elf_next_in_group (sec);
1252 while (elt != NULL)
1253 {
1254 if (!is_strip_section_1 (abfd, elt))
1255 return FALSE;
1256 elt = elf_next_in_group (elt);
1257 if (elt == first)
1258 break;
1259 }
1260
1261 return TRUE;
1262 }
1263
1264 return FALSE;
1265 }
1266
1267 static bfd_boolean
1268 is_nondebug_keep_contents_section (bfd *ibfd, asection *isection)
1269 {
1270 /* Always keep ELF note sections. */
1271 if (ibfd->xvec->flavour == bfd_target_elf_flavour)
1272 return (elf_section_type (isection) == SHT_NOTE);
1273
1274 /* Always keep the .buildid section for PE/COFF.
1275
1276 Strictly, this should be written "always keep the section storing the debug
1277 directory", but that may be the .text section for objects produced by some
1278 tools, which it is not sensible to keep. */
1279 if (ibfd->xvec->flavour == bfd_target_coff_flavour)
1280 return (strcmp (bfd_get_section_name (ibfd, isection), ".buildid") == 0);
1281
1282 return FALSE;
1283 }
1284
1285 /* Return true if SYM is a hidden symbol. */
1286
1287 static bfd_boolean
1288 is_hidden_symbol (asymbol *sym)
1289 {
1290 elf_symbol_type *elf_sym;
1291
1292 elf_sym = elf_symbol_from (sym->the_bfd, sym);
1293 if (elf_sym != NULL)
1294 switch (ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other))
1295 {
1296 case STV_HIDDEN:
1297 case STV_INTERNAL:
1298 return TRUE;
1299 }
1300 return FALSE;
1301 }
1302
1303 static bfd_boolean
1304 need_sym_before (struct addsym_node **node, const char *sym)
1305 {
1306 int count;
1307 struct addsym_node *ptr = add_sym_list;
1308
1309 /* 'othersym' symbols are at the front of the list. */
1310 for (count = 0; count < add_symbols; count++)
1311 {
1312 if (!ptr->othersym)
1313 break;
1314 else if (strcmp (ptr->othersym, sym) == 0)
1315 {
1316 free (ptr->othersym);
1317 ptr->othersym = ""; /* Empty name is hopefully never a valid symbol name. */
1318 *node = ptr;
1319 return TRUE;
1320 }
1321 ptr = ptr->next;
1322 }
1323 return FALSE;
1324 }
1325
1326 static asymbol *
1327 create_new_symbol (struct addsym_node *ptr, bfd *obfd)
1328 {
1329 asymbol *sym = bfd_make_empty_symbol(obfd);
1330
1331 bfd_asymbol_name(sym) = ptr->symdef;
1332 sym->value = ptr->symval;
1333 sym->flags = ptr->flags;
1334 if (ptr->section)
1335 {
1336 asection *sec = bfd_get_section_by_name (obfd, ptr->section);
1337 if (!sec)
1338 fatal (_("Section %s not found"), ptr->section);
1339 sym->section = sec;
1340 }
1341 else
1342 sym->section = bfd_abs_section_ptr;
1343 return sym;
1344 }
1345
1346 /* Choose which symbol entries to copy; put the result in OSYMS.
1347 We don't copy in place, because that confuses the relocs.
1348 Return the number of symbols to print. */
1349
1350 static unsigned int
1351 filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms,
1352 asymbol **isyms, long symcount)
1353 {
1354 asymbol **from = isyms, **to = osyms;
1355 long src_count = 0, dst_count = 0;
1356 int relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
1357
1358 for (; src_count < symcount; src_count++)
1359 {
1360 asymbol *sym = from[src_count];
1361 flagword flags = sym->flags;
1362 char *name = (char *) bfd_asymbol_name (sym);
1363 bfd_boolean keep;
1364 bfd_boolean used_in_reloc = FALSE;
1365 bfd_boolean undefined;
1366 bfd_boolean rem_leading_char;
1367 bfd_boolean add_leading_char;
1368
1369 undefined = bfd_is_und_section (bfd_get_section (sym));
1370
1371 if (add_sym_list)
1372 {
1373 struct addsym_node *ptr;
1374
1375 if (need_sym_before (&ptr, name))
1376 to[dst_count++] = create_new_symbol (ptr, obfd);
1377 }
1378
1379 if (redefine_sym_list)
1380 {
1381 char *old_name, *new_name;
1382
1383 old_name = (char *) bfd_asymbol_name (sym);
1384 new_name = (char *) lookup_sym_redefinition (old_name);
1385 bfd_asymbol_name (sym) = new_name;
1386 name = new_name;
1387 }
1388
1389 /* Check if we will remove the current leading character. */
1390 rem_leading_char =
1391 (name[0] == bfd_get_symbol_leading_char (abfd))
1392 && (change_leading_char
1393 || (remove_leading_char
1394 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
1395 || undefined
1396 || bfd_is_com_section (bfd_get_section (sym)))));
1397
1398 /* Check if we will add a new leading character. */
1399 add_leading_char =
1400 change_leading_char
1401 && (bfd_get_symbol_leading_char (obfd) != '\0')
1402 && (bfd_get_symbol_leading_char (abfd) == '\0'
1403 || (name[0] == bfd_get_symbol_leading_char (abfd)));
1404
1405 /* Short circuit for change_leading_char if we can do it in-place. */
1406 if (rem_leading_char && add_leading_char && !prefix_symbols_string)
1407 {
1408 name[0] = bfd_get_symbol_leading_char (obfd);
1409 bfd_asymbol_name (sym) = name;
1410 rem_leading_char = FALSE;
1411 add_leading_char = FALSE;
1412 }
1413
1414 /* Remove leading char. */
1415 if (rem_leading_char)
1416 bfd_asymbol_name (sym) = ++name;
1417
1418 /* Add new leading char and/or prefix. */
1419 if (add_leading_char || prefix_symbols_string)
1420 {
1421 char *n, *ptr;
1422
1423 ptr = n = (char *) xmalloc (1 + strlen (prefix_symbols_string)
1424 + strlen (name) + 1);
1425 if (add_leading_char)
1426 *ptr++ = bfd_get_symbol_leading_char (obfd);
1427
1428 if (prefix_symbols_string)
1429 {
1430 strcpy (ptr, prefix_symbols_string);
1431 ptr += strlen (prefix_symbols_string);
1432 }
1433
1434 strcpy (ptr, name);
1435 bfd_asymbol_name (sym) = n;
1436 name = n;
1437 }
1438
1439 if (strip_symbols == STRIP_ALL)
1440 keep = FALSE;
1441 else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */
1442 || ((flags & BSF_SECTION_SYM) != 0
1443 && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags
1444 & BSF_KEEP) != 0))
1445 {
1446 keep = TRUE;
1447 used_in_reloc = TRUE;
1448 }
1449 else if (relocatable /* Relocatable file. */
1450 && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0
1451 || bfd_is_com_section (bfd_get_section (sym))))
1452 keep = TRUE;
1453 else if (bfd_decode_symclass (sym) == 'I')
1454 /* Global symbols in $idata sections need to be retained
1455 even if relocatable is FALSE. External users of the
1456 library containing the $idata section may reference these
1457 symbols. */
1458 keep = TRUE;
1459 else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */
1460 || (flags & BSF_WEAK) != 0
1461 || undefined
1462 || bfd_is_com_section (bfd_get_section (sym)))
1463 keep = strip_symbols != STRIP_UNNEEDED;
1464 else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */
1465 keep = (strip_symbols != STRIP_DEBUG
1466 && strip_symbols != STRIP_UNNEEDED
1467 && ! convert_debugging);
1468 else if (bfd_coff_get_comdat_section (abfd, bfd_get_section (sym)))
1469 /* COMDAT sections store special information in local
1470 symbols, so we cannot risk stripping any of them. */
1471 keep = TRUE;
1472 else /* Local symbol. */
1473 keep = (strip_symbols != STRIP_UNNEEDED
1474 && (discard_locals != LOCALS_ALL
1475 && (discard_locals != LOCALS_START_L
1476 || ! bfd_is_local_label (abfd, sym))));
1477
1478 if (keep && is_specified_symbol (name, strip_specific_htab))
1479 {
1480 /* There are multiple ways to set 'keep' above, but if it
1481 was the relocatable symbol case, then that's an error. */
1482 if (used_in_reloc)
1483 {
1484 non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name);
1485 status = 1;
1486 }
1487 else
1488 keep = FALSE;
1489 }
1490
1491 if (keep
1492 && !(flags & BSF_KEEP)
1493 && is_specified_symbol (name, strip_unneeded_htab))
1494 keep = FALSE;
1495
1496 if (!keep
1497 && ((keep_file_symbols && (flags & BSF_FILE))
1498 || is_specified_symbol (name, keep_specific_htab)))
1499 keep = TRUE;
1500
1501 if (keep && is_strip_section (abfd, bfd_get_section (sym)))
1502 keep = FALSE;
1503
1504 if (keep)
1505 {
1506 if ((flags & BSF_GLOBAL) != 0
1507 && (weaken || is_specified_symbol (name, weaken_specific_htab)))
1508 {
1509 sym->flags &= ~ BSF_GLOBAL;
1510 sym->flags |= BSF_WEAK;
1511 }
1512
1513 if (!undefined
1514 && (flags & (BSF_GLOBAL | BSF_WEAK))
1515 && (is_specified_symbol (name, localize_specific_htab)
1516 || (htab_elements (keepglobal_specific_htab) != 0
1517 && ! is_specified_symbol (name, keepglobal_specific_htab))
1518 || (localize_hidden && is_hidden_symbol (sym))))
1519 {
1520 sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK);
1521 sym->flags |= BSF_LOCAL;
1522 }
1523
1524 if (!undefined
1525 && (flags & BSF_LOCAL)
1526 && is_specified_symbol (name, globalize_specific_htab))
1527 {
1528 sym->flags &= ~ BSF_LOCAL;
1529 sym->flags |= BSF_GLOBAL;
1530 }
1531
1532 to[dst_count++] = sym;
1533 }
1534 }
1535 if (add_sym_list)
1536 {
1537 struct addsym_node *ptr = add_sym_list;
1538
1539 for (src_count = 0; src_count < add_symbols; src_count++)
1540 {
1541 if (ptr->othersym)
1542 {
1543 if (strcmp (ptr->othersym, ""))
1544 fatal (_("'before=%s' not found"), ptr->othersym);
1545 }
1546 else
1547 to[dst_count++] = create_new_symbol (ptr, obfd);
1548
1549 ptr = ptr->next;
1550 }
1551 }
1552
1553 to[dst_count] = NULL;
1554
1555 return dst_count;
1556 }
1557
1558 /* Find the redefined name of symbol SOURCE. */
1559
1560 static const char *
1561 lookup_sym_redefinition (const char *source)
1562 {
1563 struct redefine_node *list;
1564
1565 for (list = redefine_sym_list; list != NULL; list = list->next)
1566 if (strcmp (source, list->source) == 0)
1567 return list->target;
1568
1569 return source;
1570 }
1571
1572 /* Add a node to a symbol redefine list. */
1573
1574 static void
1575 redefine_list_append (const char *cause, const char *source, const char *target)
1576 {
1577 struct redefine_node **p;
1578 struct redefine_node *list;
1579 struct redefine_node *new_node;
1580
1581 for (p = &redefine_sym_list; (list = *p) != NULL; p = &list->next)
1582 {
1583 if (strcmp (source, list->source) == 0)
1584 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
1585 cause, source);
1586
1587 if (strcmp (target, list->target) == 0)
1588 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
1589 cause, target);
1590 }
1591
1592 new_node = (struct redefine_node *) xmalloc (sizeof (struct redefine_node));
1593
1594 new_node->source = strdup (source);
1595 new_node->target = strdup (target);
1596 new_node->next = NULL;
1597
1598 *p = new_node;
1599 }
1600
1601 /* Handle the --redefine-syms option. Read lines containing "old new"
1602 from the file, and add them to the symbol redefine list. */
1603
1604 static void
1605 add_redefine_syms_file (const char *filename)
1606 {
1607 FILE *file;
1608 char *buf;
1609 size_t bufsize;
1610 size_t len;
1611 size_t outsym_off;
1612 int c, lineno;
1613
1614 file = fopen (filename, "r");
1615 if (file == NULL)
1616 fatal (_("couldn't open symbol redefinition file %s (error: %s)"),
1617 filename, strerror (errno));
1618
1619 bufsize = 100;
1620 buf = (char *) xmalloc (bufsize + 1 /* For the terminating NUL. */);
1621
1622 lineno = 1;
1623 c = getc (file);
1624 len = 0;
1625 outsym_off = 0;
1626 while (c != EOF)
1627 {
1628 /* Collect the input symbol name. */
1629 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1630 {
1631 if (c == '#')
1632 goto comment;
1633 buf[len++] = c;
1634 if (len >= bufsize)
1635 {
1636 bufsize *= 2;
1637 buf = (char *) xrealloc (buf, bufsize + 1);
1638 }
1639 c = getc (file);
1640 }
1641 buf[len++] = '\0';
1642 if (c == EOF)
1643 break;
1644
1645 /* Eat white space between the symbol names. */
1646 while (IS_WHITESPACE (c))
1647 c = getc (file);
1648 if (c == '#' || IS_LINE_TERMINATOR (c))
1649 goto comment;
1650 if (c == EOF)
1651 break;
1652
1653 /* Collect the output symbol name. */
1654 outsym_off = len;
1655 while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF)
1656 {
1657 if (c == '#')
1658 goto comment;
1659 buf[len++] = c;
1660 if (len >= bufsize)
1661 {
1662 bufsize *= 2;
1663 buf = (char *) xrealloc (buf, bufsize + 1);
1664 }
1665 c = getc (file);
1666 }
1667 buf[len++] = '\0';
1668 if (c == EOF)
1669 break;
1670
1671 /* Eat white space at end of line. */
1672 while (! IS_LINE_TERMINATOR(c) && c != EOF && IS_WHITESPACE (c))
1673 c = getc (file);
1674 if (c == '#')
1675 goto comment;
1676 /* Handle \r\n. */
1677 if ((c == '\r' && (c = getc (file)) == '\n')
1678 || c == '\n' || c == EOF)
1679 {
1680 end_of_line:
1681 /* Append the redefinition to the list. */
1682 if (buf[0] != '\0')
1683 redefine_list_append (filename, &buf[0], &buf[outsym_off]);
1684
1685 lineno++;
1686 len = 0;
1687 outsym_off = 0;
1688 if (c == EOF)
1689 break;
1690 c = getc (file);
1691 continue;
1692 }
1693 else
1694 fatal (_("%s:%d: garbage found at end of line"), filename, lineno);
1695 comment:
1696 if (len != 0 && (outsym_off == 0 || outsym_off == len))
1697 fatal (_("%s:%d: missing new symbol name"), filename, lineno);
1698 buf[len++] = '\0';
1699
1700 /* Eat the rest of the line and finish it. */
1701 while (c != '\n' && c != EOF)
1702 c = getc (file);
1703 goto end_of_line;
1704 }
1705
1706 if (len != 0)
1707 fatal (_("%s:%d: premature end of file"), filename, lineno);
1708
1709 free (buf);
1710 }
1711
1712 /* Copy unkown object file IBFD onto OBFD.
1713 Returns TRUE upon success, FALSE otherwise. */
1714
1715 static bfd_boolean
1716 copy_unknown_object (bfd *ibfd, bfd *obfd)
1717 {
1718 char *cbuf;
1719 int tocopy;
1720 long ncopied;
1721 long size;
1722 struct stat buf;
1723
1724 if (bfd_stat_arch_elt (ibfd, &buf) != 0)
1725 {
1726 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1727 return FALSE;
1728 }
1729
1730 size = buf.st_size;
1731 if (size < 0)
1732 {
1733 non_fatal (_("stat returns negative size for `%s'"),
1734 bfd_get_archive_filename (ibfd));
1735 return FALSE;
1736 }
1737
1738 if (bfd_seek (ibfd, (file_ptr) 0, SEEK_SET) != 0)
1739 {
1740 bfd_nonfatal (bfd_get_archive_filename (ibfd));
1741 return FALSE;
1742 }
1743
1744 if (verbose)
1745 printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"),
1746 bfd_get_archive_filename (ibfd), bfd_get_filename (obfd));
1747
1748 cbuf = (char *) xmalloc (BUFSIZE);
1749 ncopied = 0;
1750 while (ncopied < size)
1751 {
1752 tocopy = size - ncopied;
1753 if (tocopy > BUFSIZE)
1754 tocopy = BUFSIZE;
1755
1756 if (bfd_bread (cbuf, (bfd_size_type) tocopy, ibfd)
1757 != (bfd_size_type) tocopy)
1758 {
1759 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1760 free (cbuf);
1761 return FALSE;
1762 }
1763
1764 if (bfd_bwrite (cbuf, (bfd_size_type) tocopy, obfd)
1765 != (bfd_size_type) tocopy)
1766 {
1767 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
1768 free (cbuf);
1769 return FALSE;
1770 }
1771
1772 ncopied += tocopy;
1773 }
1774
1775 /* We should at least to be able to read it back when copying an
1776 unknown object in an archive. */
1777 chmod (bfd_get_filename (obfd), buf.st_mode | S_IRUSR);
1778 free (cbuf);
1779 return TRUE;
1780 }
1781
1782 /* Copy object file IBFD onto OBFD.
1783 Returns TRUE upon success, FALSE otherwise. */
1784
1785 static bfd_boolean
1786 copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch)
1787 {
1788 bfd_vma start;
1789 long symcount;
1790 asection **osections = NULL;
1791 asection *gnu_debuglink_section = NULL;
1792 bfd_size_type *gaps = NULL;
1793 bfd_size_type max_gap = 0;
1794 long symsize;
1795 void *dhandle;
1796 enum bfd_architecture iarch;
1797 unsigned int imach;
1798 unsigned int c, i;
1799
1800 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
1801 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
1802 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
1803 {
1804 /* PR 17636: Call non-fatal so that we return to our parent who
1805 may need to tidy temporary files. */
1806 non_fatal (_("Unable to change endianness of input file(s)"));
1807 return FALSE;
1808 }
1809
1810 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1811 {
1812 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
1813 return FALSE;
1814 }
1815
1816 if (ibfd->sections == NULL)
1817 {
1818 non_fatal (_("error: the input file '%s' has no sections"),
1819 bfd_get_archive_filename (ibfd));
1820 return FALSE;
1821 }
1822
1823 if ((do_debug_sections & compress) != 0
1824 && do_debug_sections != compress
1825 && ibfd->xvec->flavour != bfd_target_elf_flavour)
1826 {
1827 non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"),
1828 bfd_get_archive_filename (ibfd));
1829 return FALSE;
1830 }
1831
1832 if (verbose)
1833 printf (_("copy from `%s' [%s] to `%s' [%s]\n"),
1834 bfd_get_archive_filename (ibfd), bfd_get_target (ibfd),
1835 bfd_get_filename (obfd), bfd_get_target (obfd));
1836
1837 if (extract_symbol)
1838 start = 0;
1839 else
1840 {
1841 if (set_start_set)
1842 start = set_start;
1843 else
1844 start = bfd_get_start_address (ibfd);
1845 start += change_start;
1846 }
1847
1848 /* Neither the start address nor the flags
1849 need to be set for a core file. */
1850 if (bfd_get_format (obfd) != bfd_core)
1851 {
1852 flagword flags;
1853
1854 flags = bfd_get_file_flags (ibfd);
1855 flags |= bfd_flags_to_set;
1856 flags &= ~bfd_flags_to_clear;
1857 flags &= bfd_applicable_file_flags (obfd);
1858
1859 if (strip_symbols == STRIP_ALL)
1860 flags &= ~HAS_RELOC;
1861
1862 if (!bfd_set_start_address (obfd, start)
1863 || !bfd_set_file_flags (obfd, flags))
1864 {
1865 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1866 return FALSE;
1867 }
1868 }
1869
1870 /* Copy architecture of input file to output file. */
1871 iarch = bfd_get_arch (ibfd);
1872 imach = bfd_get_mach (ibfd);
1873 if (input_arch)
1874 {
1875 if (bfd_get_arch_info (ibfd) == NULL
1876 || bfd_get_arch_info (ibfd)->arch == bfd_arch_unknown)
1877 {
1878 iarch = input_arch->arch;
1879 imach = input_arch->mach;
1880 }
1881 else
1882 non_fatal (_("Input file `%s' ignores binary architecture parameter."),
1883 bfd_get_archive_filename (ibfd));
1884 }
1885 if (!bfd_set_arch_mach (obfd, iarch, imach)
1886 && (ibfd->target_defaulted
1887 || bfd_get_arch (ibfd) != bfd_get_arch (obfd)))
1888 {
1889 if (bfd_get_arch (ibfd) == bfd_arch_unknown)
1890 non_fatal (_("Unable to recognise the format of the input file `%s'"),
1891 bfd_get_archive_filename (ibfd));
1892 else
1893 non_fatal (_("Output file cannot represent architecture `%s'"),
1894 bfd_printable_arch_mach (bfd_get_arch (ibfd),
1895 bfd_get_mach (ibfd)));
1896 return FALSE;
1897 }
1898
1899 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1900 {
1901 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1902 return FALSE;
1903 }
1904
1905 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
1906 && bfd_pei_p (obfd))
1907 {
1908 /* Set up PE parameters. */
1909 pe_data_type *pe = pe_data (obfd);
1910
1911 /* Copy PE parameters before changing them. */
1912 if (ibfd->xvec->flavour == bfd_target_coff_flavour
1913 && bfd_pei_p (ibfd))
1914 pe->pe_opthdr = pe_data (ibfd)->pe_opthdr;
1915
1916 if (pe_file_alignment != (bfd_vma) -1)
1917 pe->pe_opthdr.FileAlignment = pe_file_alignment;
1918 else
1919 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
1920
1921 if (pe_heap_commit != (bfd_vma) -1)
1922 pe->pe_opthdr.SizeOfHeapCommit = pe_heap_commit;
1923
1924 if (pe_heap_reserve != (bfd_vma) -1)
1925 pe->pe_opthdr.SizeOfHeapCommit = pe_heap_reserve;
1926
1927 if (pe_image_base != (bfd_vma) -1)
1928 pe->pe_opthdr.ImageBase = pe_image_base;
1929
1930 if (pe_section_alignment != (bfd_vma) -1)
1931 pe->pe_opthdr.SectionAlignment = pe_section_alignment;
1932 else
1933 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
1934
1935 if (pe_stack_commit != (bfd_vma) -1)
1936 pe->pe_opthdr.SizeOfStackCommit = pe_stack_commit;
1937
1938 if (pe_stack_reserve != (bfd_vma) -1)
1939 pe->pe_opthdr.SizeOfStackCommit = pe_stack_reserve;
1940
1941 if (pe_subsystem != -1)
1942 pe->pe_opthdr.Subsystem = pe_subsystem;
1943
1944 if (pe_major_subsystem_version != -1)
1945 pe->pe_opthdr.MajorSubsystemVersion = pe_major_subsystem_version;
1946
1947 if (pe_minor_subsystem_version != -1)
1948 pe->pe_opthdr.MinorSubsystemVersion = pe_minor_subsystem_version;
1949
1950 if (pe_file_alignment > pe_section_alignment)
1951 {
1952 char file_alignment[20], section_alignment[20];
1953
1954 sprintf_vma (file_alignment, pe_file_alignment);
1955 sprintf_vma (section_alignment, pe_section_alignment);
1956 non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"),
1957
1958 file_alignment, section_alignment);
1959 }
1960 }
1961
1962 if (isympp)
1963 free (isympp);
1964
1965 if (osympp != isympp)
1966 free (osympp);
1967
1968 isympp = NULL;
1969 osympp = NULL;
1970
1971 symsize = bfd_get_symtab_upper_bound (ibfd);
1972 if (symsize < 0)
1973 {
1974 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1975 return FALSE;
1976 }
1977
1978 osympp = isympp = (asymbol **) xmalloc (symsize);
1979 symcount = bfd_canonicalize_symtab (ibfd, isympp);
1980 if (symcount < 0)
1981 {
1982 bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
1983 return FALSE;
1984 }
1985 /* PR 17512: file: d6323821
1986 If the symbol table could not be loaded do not pretend that we have
1987 any symbols. This trips us up later on when we load the relocs. */
1988 if (symcount == 0)
1989 {
1990 free (isympp);
1991 osympp = isympp = NULL;
1992 }
1993
1994 /* BFD mandates that all output sections be created and sizes set before
1995 any output is done. Thus, we traverse all sections multiple times. */
1996 bfd_map_over_sections (ibfd, setup_section, obfd);
1997
1998 if (!extract_symbol)
1999 setup_bfd_headers (ibfd, obfd);
2000
2001 if (add_sections != NULL)
2002 {
2003 struct section_add *padd;
2004 struct section_list *pset;
2005
2006 for (padd = add_sections; padd != NULL; padd = padd->next)
2007 {
2008 flagword flags;
2009
2010 pset = find_section_list (padd->name, FALSE,
2011 SECTION_CONTEXT_SET_FLAGS);
2012 if (pset != NULL)
2013 flags = pset->flags | SEC_HAS_CONTENTS;
2014 else
2015 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA;
2016
2017 /* bfd_make_section_with_flags() does not return very helpful
2018 error codes, so check for the most likely user error first. */
2019 if (bfd_get_section_by_name (obfd, padd->name))
2020 {
2021 bfd_nonfatal_message (NULL, obfd, NULL,
2022 _("can't add section '%s'"), padd->name);
2023 return FALSE;
2024 }
2025 else
2026 {
2027 /* We use LINKER_CREATED here so that the backend hooks
2028 will create any special section type information,
2029 instead of presuming we know what we're doing merely
2030 because we set the flags. */
2031 padd->section = bfd_make_section_with_flags
2032 (obfd, padd->name, flags | SEC_LINKER_CREATED);
2033 if (padd->section == NULL)
2034 {
2035 bfd_nonfatal_message (NULL, obfd, NULL,
2036 _("can't create section `%s'"),
2037 padd->name);
2038 return FALSE;
2039 }
2040 }
2041
2042 if (! bfd_set_section_size (obfd, padd->section, padd->size))
2043 {
2044 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
2045 return FALSE;
2046 }
2047
2048 pset = find_section_list (padd->name, FALSE,
2049 SECTION_CONTEXT_SET_VMA | SECTION_CONTEXT_ALTER_VMA);
2050 if (pset != NULL
2051 && ! bfd_set_section_vma (obfd, padd->section, pset->vma_val))
2052 {
2053 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
2054 return FALSE;
2055 }
2056
2057 pset = find_section_list (padd->name, FALSE,
2058 SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_ALTER_LMA);
2059 if (pset != NULL)
2060 {
2061 padd->section->lma = pset->lma_val;
2062
2063 if (! bfd_set_section_alignment
2064 (obfd, padd->section,
2065 bfd_section_alignment (obfd, padd->section)))
2066 {
2067 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
2068 return FALSE;
2069 }
2070 }
2071 }
2072 }
2073
2074 if (update_sections != NULL)
2075 {
2076 struct section_add *pupdate;
2077
2078 for (pupdate = update_sections;
2079 pupdate != NULL;
2080 pupdate = pupdate->next)
2081 {
2082 asection *osec;
2083
2084 pupdate->section = bfd_get_section_by_name (ibfd, pupdate->name);
2085 if (pupdate->section == NULL)
2086 {
2087 non_fatal (_("error: %s not found, can't be updated"), pupdate->name);
2088 return FALSE;
2089 }
2090
2091 osec = pupdate->section->output_section;
2092 if (! bfd_set_section_size (obfd, osec, pupdate->size))
2093 {
2094 bfd_nonfatal_message (NULL, obfd, osec, NULL);
2095 return FALSE;
2096 }
2097 }
2098 }
2099
2100 if (dump_sections != NULL)
2101 {
2102 struct section_add * pdump;
2103
2104 for (pdump = dump_sections; pdump != NULL; pdump = pdump->next)
2105 {
2106 asection * sec;
2107
2108 sec = bfd_get_section_by_name (ibfd, pdump->name);
2109 if (sec == NULL)
2110 {
2111 bfd_nonfatal_message (NULL, ibfd, NULL,
2112 _("can't dump section '%s' - it does not exist"),
2113 pdump->name);
2114 continue;
2115 }
2116
2117 if ((bfd_get_section_flags (ibfd, sec) & SEC_HAS_CONTENTS) == 0)
2118 {
2119 bfd_nonfatal_message (NULL, ibfd, sec,
2120 _("can't dump section - it has no contents"));
2121 continue;
2122 }
2123
2124 bfd_size_type size = bfd_get_section_size (sec);
2125 if (size == 0)
2126 {
2127 bfd_nonfatal_message (NULL, ibfd, sec,
2128 _("can't dump section - it is empty"));
2129 continue;
2130 }
2131
2132 FILE * f;
2133 f = fopen (pdump->filename, FOPEN_WB);
2134 if (f == NULL)
2135 {
2136 bfd_nonfatal_message (pdump->filename, NULL, NULL,
2137 _("could not open section dump file"));
2138 continue;
2139 }
2140
2141 bfd_byte * contents = xmalloc (size);
2142 if (bfd_get_section_contents (ibfd, sec, contents, 0, size))
2143 {
2144 if (fwrite (contents, 1, size, f) != size)
2145 {
2146 non_fatal (_("error writing section contents to %s (error: %s)"),
2147 pdump->filename,
2148 strerror (errno));
2149 return FALSE;
2150 }
2151 }
2152 else
2153 bfd_nonfatal_message (NULL, ibfd, sec,
2154 _("could not retrieve section contents"));
2155
2156 fclose (f);
2157 free (contents);
2158 }
2159 }
2160
2161 if (gnu_debuglink_filename != NULL)
2162 {
2163 /* PR 15125: Give a helpful warning message if
2164 the debuglink section already exists, and
2165 allow the rest of the copy to complete. */
2166 if (bfd_get_section_by_name (obfd, ".gnu_debuglink"))
2167 {
2168 non_fatal (_("%s: debuglink section already exists"),
2169 bfd_get_filename (obfd));
2170 gnu_debuglink_filename = NULL;
2171 }
2172 else
2173 {
2174 gnu_debuglink_section = bfd_create_gnu_debuglink_section
2175 (obfd, gnu_debuglink_filename);
2176
2177 if (gnu_debuglink_section == NULL)
2178 {
2179 bfd_nonfatal_message (NULL, obfd, NULL,
2180 _("cannot create debug link section `%s'"),
2181 gnu_debuglink_filename);
2182 return FALSE;
2183 }
2184
2185 /* Special processing for PE format files. We
2186 have no way to distinguish PE from COFF here. */
2187 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour)
2188 {
2189 bfd_vma debuglink_vma;
2190 asection * highest_section;
2191 asection * sec;
2192
2193 /* The PE spec requires that all sections be adjacent and sorted
2194 in ascending order of VMA. It also specifies that debug
2195 sections should be last. This is despite the fact that debug
2196 sections are not loaded into memory and so in theory have no
2197 use for a VMA.
2198
2199 This means that the debuglink section must be given a non-zero
2200 VMA which makes it contiguous with other debug sections. So
2201 walk the current section list, find the section with the
2202 highest VMA and start the debuglink section after that one. */
2203 for (sec = obfd->sections, highest_section = NULL;
2204 sec != NULL;
2205 sec = sec->next)
2206 if (sec->vma > 0
2207 && (highest_section == NULL
2208 || sec->vma > highest_section->vma))
2209 highest_section = sec;
2210
2211 if (highest_section)
2212 debuglink_vma = BFD_ALIGN (highest_section->vma
2213 + highest_section->size,
2214 /* FIXME: We ought to be using
2215 COFF_PAGE_SIZE here or maybe
2216 bfd_get_section_alignment() (if it
2217 was set) but since this is for PE
2218 and we know the required alignment
2219 it is easier just to hard code it. */
2220 0x1000);
2221 else
2222 /* Umm, not sure what to do in this case. */
2223 debuglink_vma = 0x1000;
2224
2225 bfd_set_section_vma (obfd, gnu_debuglink_section, debuglink_vma);
2226 }
2227 }
2228 }
2229
2230 c = bfd_count_sections (obfd);
2231 if (c != 0
2232 && (gap_fill_set || pad_to_set))
2233 {
2234 asection **set;
2235
2236 /* We must fill in gaps between the sections and/or we must pad
2237 the last section to a specified address. We do this by
2238 grabbing a list of the sections, sorting them by VMA, and
2239 increasing the section sizes as required to fill the gaps.
2240 We write out the gap contents below. */
2241
2242 osections = (asection **) xmalloc (c * sizeof (asection *));
2243 set = osections;
2244 bfd_map_over_sections (obfd, get_sections, &set);
2245
2246 qsort (osections, c, sizeof (asection *), compare_section_lma);
2247
2248 gaps = (bfd_size_type *) xmalloc (c * sizeof (bfd_size_type));
2249 memset (gaps, 0, c * sizeof (bfd_size_type));
2250
2251 if (gap_fill_set)
2252 {
2253 for (i = 0; i < c - 1; i++)
2254 {
2255 flagword flags;
2256 bfd_size_type size;
2257 bfd_vma gap_start, gap_stop;
2258
2259 flags = bfd_get_section_flags (obfd, osections[i]);
2260 if ((flags & SEC_HAS_CONTENTS) == 0
2261 || (flags & SEC_LOAD) == 0)
2262 continue;
2263
2264 size = bfd_section_size (obfd, osections[i]);
2265 gap_start = bfd_section_lma (obfd, osections[i]) + size;
2266 gap_stop = bfd_section_lma (obfd, osections[i + 1]);
2267 if (gap_start < gap_stop)
2268 {
2269 if (! bfd_set_section_size (obfd, osections[i],
2270 size + (gap_stop - gap_start)))
2271 {
2272 bfd_nonfatal_message (NULL, obfd, osections[i],
2273 _("Can't fill gap after section"));
2274 status = 1;
2275 break;
2276 }
2277 gaps[i] = gap_stop - gap_start;
2278 if (max_gap < gap_stop - gap_start)
2279 max_gap = gap_stop - gap_start;
2280 }
2281 }
2282 }
2283
2284 if (pad_to_set)
2285 {
2286 bfd_vma lma;
2287 bfd_size_type size;
2288
2289 lma = bfd_section_lma (obfd, osections[c - 1]);
2290 size = bfd_section_size (obfd, osections[c - 1]);
2291 if (lma + size < pad_to)
2292 {
2293 if (! bfd_set_section_size (obfd, osections[c - 1],
2294 pad_to - lma))
2295 {
2296 bfd_nonfatal_message (NULL, obfd, osections[c - 1],
2297 _("can't add padding"));
2298 status = 1;
2299 }
2300 else
2301 {
2302 gaps[c - 1] = pad_to - (lma + size);
2303 if (max_gap < pad_to - (lma + size))
2304 max_gap = pad_to - (lma + size);
2305 }
2306 }
2307 }
2308 }
2309
2310 /* Symbol filtering must happen after the output sections
2311 have been created, but before their contents are set. */
2312 dhandle = NULL;
2313 if (convert_debugging)
2314 dhandle = read_debugging_info (ibfd, isympp, symcount, FALSE);
2315
2316 if (strip_symbols == STRIP_DEBUG
2317 || strip_symbols == STRIP_ALL
2318 || strip_symbols == STRIP_UNNEEDED
2319 || strip_symbols == STRIP_NONDEBUG
2320 || strip_symbols == STRIP_DWO
2321 || strip_symbols == STRIP_NONDWO
2322 || discard_locals != LOCALS_UNDEF
2323 || localize_hidden
2324 || htab_elements (strip_specific_htab) != 0
2325 || htab_elements (keep_specific_htab) != 0
2326 || htab_elements (localize_specific_htab) != 0
2327 || htab_elements (globalize_specific_htab) != 0
2328 || htab_elements (keepglobal_specific_htab) != 0
2329 || htab_elements (weaken_specific_htab) != 0
2330 || prefix_symbols_string
2331 || sections_removed
2332 || sections_copied
2333 || convert_debugging
2334 || change_leading_char
2335 || remove_leading_char
2336 || redefine_sym_list
2337 || weaken
2338 || add_symbols)
2339 {
2340 /* Mark symbols used in output relocations so that they
2341 are kept, even if they are local labels or static symbols.
2342
2343 Note we iterate over the input sections examining their
2344 relocations since the relocations for the output sections
2345 haven't been set yet. mark_symbols_used_in_relocations will
2346 ignore input sections which have no corresponding output
2347 section. */
2348 if (strip_symbols != STRIP_ALL)
2349 bfd_map_over_sections (ibfd,
2350 mark_symbols_used_in_relocations,
2351 isympp);
2352 osympp = (asymbol **) xmalloc ((symcount + add_symbols + 1) * sizeof (asymbol *));
2353 symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount);
2354 }
2355
2356 if (convert_debugging && dhandle != NULL)
2357 {
2358 if (! write_debugging_info (obfd, dhandle, &symcount, &osympp))
2359 {
2360 status = 1;
2361 return FALSE;
2362 }
2363 }
2364
2365 bfd_set_symtab (obfd, osympp, symcount);
2366
2367 /* This has to happen before section positions are set. */
2368 bfd_map_over_sections (ibfd, copy_relocations_in_section, obfd);
2369
2370 /* This has to happen after the symbol table has been set. */
2371 bfd_map_over_sections (ibfd, copy_section, obfd);
2372
2373 if (add_sections != NULL)
2374 {
2375 struct section_add *padd;
2376
2377 for (padd = add_sections; padd != NULL; padd = padd->next)
2378 {
2379 if (! bfd_set_section_contents (obfd, padd->section, padd->contents,
2380 0, padd->size))
2381 {
2382 bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
2383 return FALSE;
2384 }
2385 }
2386 }
2387
2388 if (update_sections != NULL)
2389 {
2390 struct section_add *pupdate;
2391
2392 for (pupdate = update_sections;
2393 pupdate != NULL;
2394 pupdate = pupdate->next)
2395 {
2396 asection *osec;
2397
2398 osec = pupdate->section->output_section;
2399 if (! bfd_set_section_contents (obfd, osec, pupdate->contents,
2400 0, pupdate->size))
2401 {
2402 bfd_nonfatal_message (NULL, obfd, osec, NULL);
2403 return FALSE;
2404 }
2405 }
2406 }
2407
2408 if (gnu_debuglink_filename != NULL)
2409 {
2410 if (! bfd_fill_in_gnu_debuglink_section
2411 (obfd, gnu_debuglink_section, gnu_debuglink_filename))
2412 {
2413 bfd_nonfatal_message (NULL, obfd, NULL,
2414 _("cannot fill debug link section `%s'"),
2415 gnu_debuglink_filename);
2416 return FALSE;
2417 }
2418 }
2419
2420 if (gap_fill_set || pad_to_set)
2421 {
2422 bfd_byte *buf;
2423
2424 /* Fill in the gaps. */
2425 if (max_gap > 8192)
2426 max_gap = 8192;
2427 buf = (bfd_byte *) xmalloc (max_gap);
2428 memset (buf, gap_fill, max_gap);
2429
2430 c = bfd_count_sections (obfd);
2431 for (i = 0; i < c; i++)
2432 {
2433 if (gaps[i] != 0)
2434 {
2435 bfd_size_type left;
2436 file_ptr off;
2437
2438 left = gaps[i];
2439 off = bfd_section_size (obfd, osections[i]) - left;
2440
2441 while (left > 0)
2442 {
2443 bfd_size_type now;
2444
2445 if (left > 8192)
2446 now = 8192;
2447 else
2448 now = left;
2449
2450 if (! bfd_set_section_contents (obfd, osections[i], buf,
2451 off, now))
2452 {
2453 bfd_nonfatal_message (NULL, obfd, osections[i], NULL);
2454 return FALSE;
2455 }
2456
2457 left -= now;
2458 off += now;
2459 }
2460 }
2461 }
2462 }
2463
2464 /* Allow the BFD backend to copy any private data it understands
2465 from the input BFD to the output BFD. This is done last to
2466 permit the routine to look at the filtered symbol table, which is
2467 important for the ECOFF code at least. */
2468 if (! bfd_copy_private_bfd_data (ibfd, obfd))
2469 {
2470 bfd_nonfatal_message (NULL, obfd, NULL,
2471 _("error copying private BFD data"));
2472 return FALSE;
2473 }
2474
2475 /* Switch to the alternate machine code. We have to do this at the
2476 very end, because we only initialize the header when we create
2477 the first section. */
2478 if (use_alt_mach_code != 0)
2479 {
2480 if (! bfd_alt_mach_code (obfd, use_alt_mach_code))
2481 {
2482 non_fatal (_("this target does not support %lu alternative machine codes"),
2483 use_alt_mach_code);
2484 if (bfd_get_flavour (obfd) == bfd_target_elf_flavour)
2485 {
2486 non_fatal (_("treating that number as an absolute e_machine value instead"));
2487 elf_elfheader (obfd)->e_machine = use_alt_mach_code;
2488 }
2489 else
2490 non_fatal (_("ignoring the alternative value"));
2491 }
2492 }
2493
2494 return TRUE;
2495 }
2496
2497 /* Read each archive element in turn from IBFD, copy the
2498 contents to temp file, and keep the temp file handle.
2499 If 'force_output_target' is TRUE then make sure that
2500 all elements in the new archive are of the type
2501 'output_target'. */
2502
2503 static void
2504 copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
2505 bfd_boolean force_output_target,
2506 const bfd_arch_info_type *input_arch)
2507 {
2508 struct name_list
2509 {
2510 struct name_list *next;
2511 const char *name;
2512 bfd *obfd;
2513 } *list, *l;
2514 bfd **ptr = &obfd->archive_head;
2515 bfd *this_element;
2516 char *dir;
2517 const char *filename;
2518
2519 /* Make a temp directory to hold the contents. */
2520 dir = make_tempdir (bfd_get_filename (obfd));
2521 if (dir == NULL)
2522 fatal (_("cannot create tempdir for archive copying (error: %s)"),
2523 strerror (errno));
2524
2525 if (strip_symbols == STRIP_ALL)
2526 obfd->has_armap = FALSE;
2527 else
2528 obfd->has_armap = ibfd->has_armap;
2529 obfd->is_thin_archive = ibfd->is_thin_archive;
2530
2531 if (deterministic)
2532 obfd->flags |= BFD_DETERMINISTIC_OUTPUT;
2533
2534 list = NULL;
2535
2536 this_element = bfd_openr_next_archived_file (ibfd, NULL);
2537
2538 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
2539 {
2540 status = 1;
2541 bfd_nonfatal_message (NULL, obfd, NULL, NULL);
2542 goto cleanup_and_exit;
2543 }
2544
2545 while (!status && this_element != NULL)
2546 {
2547 char *output_name;
2548 bfd *output_bfd;
2549 bfd *last_element;
2550 struct stat buf;
2551 int stat_status = 0;
2552 bfd_boolean del = TRUE;
2553 bfd_boolean ok_object;
2554
2555 /* PR binutils/17533: Do not allow directory traversal
2556 outside of the current directory tree by archive members. */
2557 if (! is_valid_archive_path (bfd_get_filename (this_element)))
2558 {
2559 non_fatal (_("illegal pathname found in archive member: %s"),
2560 bfd_get_filename (this_element));
2561 status = 1;
2562 goto cleanup_and_exit;
2563 }
2564
2565 /* Create an output file for this member. */
2566 output_name = concat (dir, "/",
2567 bfd_get_filename (this_element), (char *) 0);
2568
2569 /* If the file already exists, make another temp dir. */
2570 if (stat (output_name, &buf) >= 0)
2571 {
2572 output_name = make_tempdir (output_name);
2573 if (output_name == NULL)
2574 {
2575 non_fatal (_("cannot create tempdir for archive copying (error: %s)"),
2576 strerror (errno));
2577 status = 1;
2578 goto cleanup_and_exit;
2579 }
2580
2581 l = (struct name_list *) xmalloc (sizeof (struct name_list));
2582 l->name = output_name;
2583 l->next = list;
2584 l->obfd = NULL;
2585 list = l;
2586 output_name = concat (output_name, "/",
2587 bfd_get_filename (this_element), (char *) 0);
2588 }
2589
2590 if (preserve_dates)
2591 {
2592 stat_status = bfd_stat_arch_elt (this_element, &buf);
2593
2594 if (stat_status != 0)
2595 non_fatal (_("internal stat error on %s"),
2596 bfd_get_filename (this_element));
2597 }
2598
2599 l = (struct name_list *) xmalloc (sizeof (struct name_list));
2600 l->name = output_name;
2601 l->next = list;
2602 l->obfd = NULL;
2603 list = l;
2604
2605 ok_object = bfd_check_format (this_element, bfd_object);
2606 if (!ok_object)
2607 bfd_nonfatal_message (NULL, this_element, NULL,
2608 _("Unable to recognise the format of file"));
2609
2610 /* PR binutils/3110: Cope with archives
2611 containing multiple target types. */
2612 if (force_output_target || !ok_object)
2613 output_bfd = bfd_openw (output_name, output_target);
2614 else
2615 output_bfd = bfd_openw (output_name, bfd_get_target (this_element));
2616
2617 if (output_bfd == NULL)
2618 {
2619 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2620 status = 1;
2621 goto cleanup_and_exit;
2622 }
2623
2624 if (ok_object)
2625 {
2626 del = !copy_object (this_element, output_bfd, input_arch);
2627
2628 if (del && bfd_get_arch (this_element) == bfd_arch_unknown)
2629 /* Try again as an unknown object file. */
2630 ok_object = FALSE;
2631 else if (!bfd_close (output_bfd))
2632 {
2633 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2634 /* Error in new object file. Don't change archive. */
2635 status = 1;
2636 }
2637 }
2638
2639 if (!ok_object)
2640 {
2641 del = !copy_unknown_object (this_element, output_bfd);
2642 if (!bfd_close_all_done (output_bfd))
2643 {
2644 bfd_nonfatal_message (output_name, NULL, NULL, NULL);
2645 /* Error in new object file. Don't change archive. */
2646 status = 1;
2647 }
2648 }
2649
2650 if (del)
2651 {
2652 unlink (output_name);
2653 status = 1;
2654 }
2655 else
2656 {
2657 if (preserve_dates && stat_status == 0)
2658 set_times (output_name, &buf);
2659
2660 /* Open the newly output file and attach to our list. */
2661 output_bfd = bfd_openr (output_name, output_target);
2662
2663 l->obfd = output_bfd;
2664
2665 *ptr = output_bfd;
2666 ptr = &output_bfd->archive_next;
2667
2668 last_element = this_element;
2669
2670 this_element = bfd_openr_next_archived_file (ibfd, last_element);
2671
2672 bfd_close (last_element);
2673 }
2674 }
2675 *ptr = NULL;
2676
2677 filename = bfd_get_filename (obfd);
2678 if (!bfd_close (obfd))
2679 {
2680 status = 1;
2681 bfd_nonfatal_message (filename, NULL, NULL, NULL);
2682 }
2683
2684 filename = bfd_get_filename (ibfd);
2685 if (!bfd_close (ibfd))
2686 {
2687 status = 1;
2688 bfd_nonfatal_message (filename, NULL, NULL, NULL);
2689 }
2690
2691 cleanup_and_exit:
2692 /* Delete all the files that we opened. */
2693 for (l = list; l != NULL; l = l->next)
2694 {
2695 if (l->obfd == NULL)
2696 rmdir (l->name);
2697 else
2698 {
2699 bfd_close (l->obfd);
2700 unlink (l->name);
2701 }
2702 }
2703
2704 rmdir (dir);
2705 }
2706
2707 static void
2708 set_long_section_mode (bfd *output_bfd, bfd *input_bfd, enum long_section_name_handling style)
2709 {
2710 /* This is only relevant to Coff targets. */
2711 if (bfd_get_flavour (output_bfd) == bfd_target_coff_flavour)
2712 {
2713 if (style == KEEP
2714 && bfd_get_flavour (input_bfd) == bfd_target_coff_flavour)
2715 style = bfd_coff_long_section_names (input_bfd) ? ENABLE : DISABLE;
2716 bfd_coff_set_long_section_names (output_bfd, style != DISABLE);
2717 }
2718 }
2719
2720 /* The top-level control. */
2721
2722 static void
2723 copy_file (const char *input_filename, const char *output_filename,
2724 const char *input_target, const char *output_target,
2725 const bfd_arch_info_type *input_arch)
2726 {
2727 bfd *ibfd;
2728 char **obj_matching;
2729 char **core_matching;
2730 off_t size = get_file_size (input_filename);
2731
2732 if (size < 1)
2733 {
2734 if (size == 0)
2735 non_fatal (_("error: the input file '%s' is empty"),
2736 input_filename);
2737 status = 1;
2738 return;
2739 }
2740
2741 /* To allow us to do "strip *" without dying on the first
2742 non-object file, failures are nonfatal. */
2743 ibfd = bfd_openr (input_filename, input_target);
2744 if (ibfd == NULL)
2745 {
2746 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2747 status = 1;
2748 return;
2749 }
2750
2751 switch (do_debug_sections)
2752 {
2753 case compress:
2754 case compress_zlib:
2755 case compress_gnu_zlib:
2756 case compress_gabi_zlib:
2757 ibfd->flags |= BFD_COMPRESS;
2758 /* Don't check if input is ELF here since this information is
2759 only available after bfd_check_format_matches is called. */
2760 if (do_debug_sections != compress_gnu_zlib)
2761 ibfd->flags |= BFD_COMPRESS_GABI;
2762 break;
2763 case decompress:
2764 ibfd->flags |= BFD_DECOMPRESS;
2765 break;
2766 default:
2767 break;
2768 }
2769
2770 if (bfd_check_format (ibfd, bfd_archive))
2771 {
2772 bfd_boolean force_output_target;
2773 bfd *obfd;
2774
2775 /* bfd_get_target does not return the correct value until
2776 bfd_check_format succeeds. */
2777 if (output_target == NULL)
2778 {
2779 output_target = bfd_get_target (ibfd);
2780 force_output_target = FALSE;
2781 }
2782 else
2783 force_output_target = TRUE;
2784
2785 obfd = bfd_openw (output_filename, output_target);
2786 if (obfd == NULL)
2787 {
2788 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2789 status = 1;
2790 return;
2791 }
2792 /* This is a no-op on non-Coff targets. */
2793 set_long_section_mode (obfd, ibfd, long_section_names);
2794
2795 copy_archive (ibfd, obfd, output_target, force_output_target, input_arch);
2796 }
2797 else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
2798 {
2799 bfd *obfd;
2800 do_copy:
2801
2802 /* bfd_get_target does not return the correct value until
2803 bfd_check_format succeeds. */
2804 if (output_target == NULL)
2805 output_target = bfd_get_target (ibfd);
2806
2807 obfd = bfd_openw (output_filename, output_target);
2808 if (obfd == NULL)
2809 {
2810 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2811 status = 1;
2812 return;
2813 }
2814 /* This is a no-op on non-Coff targets. */
2815 set_long_section_mode (obfd, ibfd, long_section_names);
2816
2817 if (! copy_object (ibfd, obfd, input_arch))
2818 status = 1;
2819
2820 /* PR 17512: file: 0f15796a.
2821 If the file could not be copied it may not be in a writeable
2822 state. So use bfd_close_all_done to avoid the possibility of
2823 writing uninitialised data into the file. */
2824 if (! (status ? bfd_close_all_done (obfd) : bfd_close (obfd)))
2825 {
2826 status = 1;
2827 bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
2828 return;
2829 }
2830
2831 if (!bfd_close (ibfd))
2832 {
2833 status = 1;
2834 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2835 return;
2836 }
2837 }
2838 else
2839 {
2840 bfd_error_type obj_error = bfd_get_error ();
2841 bfd_error_type core_error;
2842
2843 if (bfd_check_format_matches (ibfd, bfd_core, &core_matching))
2844 {
2845 /* This probably can't happen.. */
2846 if (obj_error == bfd_error_file_ambiguously_recognized)
2847 free (obj_matching);
2848 goto do_copy;
2849 }
2850
2851 core_error = bfd_get_error ();
2852 /* Report the object error in preference to the core error. */
2853 if (obj_error != core_error)
2854 bfd_set_error (obj_error);
2855
2856 bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
2857
2858 if (obj_error == bfd_error_file_ambiguously_recognized)
2859 {
2860 list_matching_formats (obj_matching);
2861 free (obj_matching);
2862 }
2863 if (core_error == bfd_error_file_ambiguously_recognized)
2864 {
2865 list_matching_formats (core_matching);
2866 free (core_matching);
2867 }
2868
2869 status = 1;
2870 }
2871 }
2872
2873 /* Add a name to the section renaming list. */
2874
2875 static void
2876 add_section_rename (const char * old_name, const char * new_name,
2877 flagword flags)
2878 {
2879 section_rename * srename;
2880
2881 /* Check for conflicts first. */
2882 for (srename = section_rename_list; srename != NULL; srename = srename->next)
2883 if (strcmp (srename->old_name, old_name) == 0)
2884 {
2885 /* Silently ignore duplicate definitions. */
2886 if (strcmp (srename->new_name, new_name) == 0
2887 && srename->flags == flags)
2888 return;
2889
2890 fatal (_("Multiple renames of section %s"), old_name);
2891 }
2892
2893 srename = (section_rename *) xmalloc (sizeof (* srename));
2894
2895 srename->old_name = old_name;
2896 srename->new_name = new_name;
2897 srename->flags = flags;
2898 srename->next = section_rename_list;
2899
2900 section_rename_list = srename;
2901 }
2902
2903 /* Check the section rename list for a new name of the input section
2904 ISECTION. Return the new name if one is found.
2905 Also set RETURNED_FLAGS to the flags to be used for this section. */
2906
2907 static const char *
2908 find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection,
2909 flagword * returned_flags)
2910 {
2911 const char * old_name = bfd_section_name (ibfd, isection);
2912 section_rename * srename;
2913
2914 /* Default to using the flags of the input section. */
2915 * returned_flags = bfd_get_section_flags (ibfd, isection);
2916
2917 for (srename = section_rename_list; srename != NULL; srename = srename->next)
2918 if (strcmp (srename->old_name, old_name) == 0)
2919 {
2920 if (srename->flags != (flagword) -1)
2921 * returned_flags = srename->flags;
2922
2923 return srename->new_name;
2924 }
2925
2926 return old_name;
2927 }
2928
2929 /* Once each of the sections is copied, we may still need to do some
2930 finalization work for private section headers. Do that here. */
2931
2932 static void
2933 setup_bfd_headers (bfd *ibfd, bfd *obfd)
2934 {
2935 /* Allow the BFD backend to copy any private data it understands
2936 from the input section to the output section. */
2937 if (! bfd_copy_private_header_data (ibfd, obfd))
2938 {
2939 status = 1;
2940 bfd_nonfatal_message (NULL, ibfd, NULL,
2941 _("error in private header data"));
2942 return;
2943 }
2944
2945 /* All went well. */
2946 return;
2947 }
2948
2949 /* Create a section in OBFD with the same
2950 name and attributes as ISECTION in IBFD. */
2951
2952 static void
2953 setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
2954 {
2955 bfd *obfd = (bfd *) obfdarg;
2956 struct section_list *p;
2957 sec_ptr osection;
2958 bfd_size_type size;
2959 bfd_vma vma;
2960 bfd_vma lma;
2961 flagword flags;
2962 const char *err;
2963 const char * name;
2964 char *prefix = NULL;
2965 bfd_boolean make_nobits;
2966
2967 if (is_strip_section (ibfd, isection))
2968 return;
2969
2970 /* Get the, possibly new, name of the output section. */
2971 name = find_section_rename (ibfd, isection, & flags);
2972
2973 /* Prefix sections. */
2974 if ((prefix_alloc_sections_string)
2975 && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC))
2976 prefix = prefix_alloc_sections_string;
2977 else if (prefix_sections_string)
2978 prefix = prefix_sections_string;
2979
2980 if (prefix)
2981 {
2982 char *n;
2983
2984 n = (char *) xmalloc (strlen (prefix) + strlen (name) + 1);
2985 strcpy (n, prefix);
2986 strcat (n, name);
2987 name = n;
2988 }
2989
2990 make_nobits = FALSE;
2991
2992 p = find_section_list (bfd_section_name (ibfd, isection), FALSE,
2993 SECTION_CONTEXT_SET_FLAGS);
2994 if (p != NULL)
2995 flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
2996 else if (strip_symbols == STRIP_NONDEBUG
2997 && (flags & (SEC_ALLOC | SEC_GROUP)) != 0
2998 && !is_nondebug_keep_contents_section (ibfd, isection))
2999 {
3000 flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP);
3001 if (obfd->xvec->flavour == bfd_target_elf_flavour)
3002 {
3003 make_nobits = TRUE;
3004
3005 /* Twiddle the input section flags so that it seems to
3006 elf.c:copy_private_bfd_data that section flags have not
3007 changed between input and output sections. This hack
3008 prevents wholesale rewriting of the program headers. */
3009 isection->flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP);
3010 }
3011 }
3012
3013 osection = bfd_make_section_anyway_with_flags (obfd, name, flags);
3014
3015 if (osection == NULL)
3016 {
3017 err = _("failed to create output section");
3018 goto loser;
3019 }
3020
3021 if (make_nobits)
3022 elf_section_type (osection) = SHT_NOBITS;
3023
3024 size = bfd_section_size (ibfd, isection);
3025 size = bfd_convert_section_size (ibfd, isection, obfd, size);
3026 if (copy_byte >= 0)
3027 size = (size + interleave - 1) / interleave * copy_width;
3028 else if (extract_symbol)
3029 size = 0;
3030 if (! bfd_set_section_size (obfd, osection, size))
3031 {
3032 err = _("failed to set size");
3033 goto loser;
3034 }
3035
3036 vma = bfd_section_vma (ibfd, isection);
3037 p = find_section_list (bfd_section_name (ibfd, isection), FALSE,
3038 SECTION_CONTEXT_ALTER_VMA | SECTION_CONTEXT_SET_VMA);
3039 if (p != NULL)
3040 {
3041 if (p->context & SECTION_CONTEXT_SET_VMA)
3042 vma = p->vma_val;
3043 else
3044 vma += p->vma_val;
3045 }
3046 else
3047 vma += change_section_address;
3048
3049 if (! bfd_set_section_vma (obfd, osection, vma))
3050 {
3051 err = _("failed to set vma");
3052 goto loser;
3053 }
3054
3055 lma = isection->lma;
3056 p = find_section_list (bfd_section_name (ibfd, isection), FALSE,
3057 SECTION_CONTEXT_ALTER_LMA | SECTION_CONTEXT_SET_LMA);
3058 if (p != NULL)
3059 {
3060 if (p->context & SECTION_CONTEXT_ALTER_LMA)
3061 lma += p->lma_val;
3062 else
3063 lma = p->lma_val;
3064 }
3065 else
3066 lma += change_section_address;
3067
3068 osection->lma = lma;
3069
3070 /* FIXME: This is probably not enough. If we change the LMA we
3071 may have to recompute the header for the file as well. */
3072 if (!bfd_set_section_alignment (obfd,
3073 osection,
3074 bfd_section_alignment (ibfd, isection)))
3075 {
3076 err = _("failed to set alignment");
3077 goto loser;
3078 }
3079
3080 /* Copy merge entity size. */
3081 osection->entsize = isection->entsize;
3082
3083 /* Copy compress status. */
3084 osection->compress_status = isection->compress_status;
3085
3086 /* This used to be mangle_section; we do here to avoid using
3087 bfd_get_section_by_name since some formats allow multiple
3088 sections with the same name. */
3089 isection->output_section = osection;
3090 isection->output_offset = 0;
3091
3092 /* Do not copy backend data if --extract-symbol is passed; anything
3093 that needs to look at the section contents will fail. */
3094 if (extract_symbol)
3095 return;
3096
3097 if ((isection->flags & SEC_GROUP) != 0)
3098 {
3099 asymbol *gsym = group_signature (isection);
3100
3101 if (gsym != NULL)
3102 {
3103 gsym->flags |= BSF_KEEP;
3104 if (ibfd->xvec->flavour == bfd_target_elf_flavour)
3105 elf_group_id (isection) = gsym;
3106 }
3107 }
3108
3109 /* Allow the BFD backend to copy any private data it understands
3110 from the input section to the output section. */
3111 if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
3112 {
3113 err = _("failed to copy private data");
3114 goto loser;
3115 }
3116
3117 /* All went well. */
3118 return;
3119
3120 loser:
3121 status = 1;
3122 bfd_nonfatal_message (NULL, obfd, osection, err);
3123 }
3124
3125 /* Return TRUE if input section ISECTION should be skipped. */
3126
3127 static bfd_boolean
3128 skip_section (bfd *ibfd, sec_ptr isection)
3129 {
3130 sec_ptr osection;
3131 bfd_size_type size;
3132 flagword flags;
3133
3134 /* If we have already failed earlier on,
3135 do not keep on generating complaints now. */
3136 if (status != 0)
3137 return TRUE;
3138
3139 if (extract_symbol)
3140 return TRUE;
3141
3142 if (is_strip_section (ibfd, isection))
3143 return TRUE;
3144
3145 if (is_update_section (ibfd, isection))
3146 return TRUE;
3147
3148 flags = bfd_get_section_flags (ibfd, isection);
3149 if ((flags & SEC_GROUP) != 0)
3150 return TRUE;
3151
3152 osection = isection->output_section;
3153 size = bfd_get_section_size (isection);
3154
3155 if (size == 0 || osection == 0)
3156 return TRUE;
3157
3158 return FALSE;
3159 }
3160
3161 /* Copy relocations in input section ISECTION of IBFD to an output
3162 section with the same name in OBFDARG. If stripping then don't
3163 copy any relocation info. */
3164
3165 static void
3166 copy_relocations_in_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
3167 {
3168 bfd *obfd = (bfd *) obfdarg;
3169 long relsize;
3170 arelent **relpp;
3171 long relcount;
3172 sec_ptr osection;
3173
3174 if (skip_section (ibfd, isection))
3175 return;
3176
3177 osection = isection->output_section;
3178
3179 /* Core files and DWO files do not need to be relocated. */
3180 if (bfd_get_format (obfd) == bfd_core || strip_symbols == STRIP_NONDWO)
3181 relsize = 0;
3182 else
3183 {
3184 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
3185
3186 if (relsize < 0)
3187 {
3188 /* Do not complain if the target does not support relocations. */
3189 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
3190 relsize = 0;
3191 else
3192 {
3193 status = 1;
3194 bfd_nonfatal_message (NULL, ibfd, isection, NULL);
3195 return;
3196 }
3197 }
3198 }
3199
3200 if (relsize == 0)
3201 {
3202 bfd_set_reloc (obfd, osection, NULL, 0);
3203 osection->flags &= ~SEC_RELOC;
3204 }
3205 else
3206 {
3207 relpp = (arelent **) xmalloc (relsize);
3208 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
3209 if (relcount < 0)
3210 {
3211 status = 1;
3212 bfd_nonfatal_message (NULL, ibfd, isection,
3213 _("relocation count is negative"));
3214 return;
3215 }
3216
3217 if (strip_symbols == STRIP_ALL)
3218 {
3219 /* Remove relocations which are not in
3220 keep_strip_specific_list. */
3221 arelent **temp_relpp;
3222 long temp_relcount = 0;
3223 long i;
3224
3225 temp_relpp = (arelent **) xmalloc (relsize);
3226 for (i = 0; i < relcount; i++)
3227 {
3228 /* PR 17512: file: 9e907e0c. */
3229 if (relpp[i]->sym_ptr_ptr)
3230 if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr),
3231 keep_specific_htab))
3232 temp_relpp [temp_relcount++] = relpp [i];
3233 }
3234 relcount = temp_relcount;
3235 free (relpp);
3236 relpp = temp_relpp;
3237 }
3238
3239 bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount);
3240 if (relcount == 0)
3241 {
3242 osection->flags &= ~SEC_RELOC;
3243 free (relpp);
3244 }
3245 }
3246 }
3247
3248 /* Copy the data of input section ISECTION of IBFD
3249 to an output section with the same name in OBFD. */
3250
3251 static void
3252 copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
3253 {
3254 bfd *obfd = (bfd *) obfdarg;
3255 struct section_list *p;
3256 sec_ptr osection;
3257 bfd_size_type size;
3258
3259 if (skip_section (ibfd, isection))
3260 return;
3261
3262 osection = isection->output_section;
3263 /* The output SHF_COMPRESSED section size is different from input if
3264 ELF classes of input and output aren't the same. We can't use
3265 the output section size since --interleave will shrink the output
3266 section. Size will be updated if the section is converted. */
3267 size = bfd_get_section_size (isection);
3268
3269 if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
3270 && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
3271 {
3272 bfd_byte *memhunk = NULL;
3273
3274 if (!bfd_get_full_section_contents (ibfd, isection, &memhunk)
3275 || !bfd_convert_section_contents (ibfd, isection, obfd,
3276 &memhunk, &size))
3277 {
3278 status = 1;
3279 bfd_nonfatal_message (NULL, ibfd, isection, NULL);
3280 return;
3281 }
3282
3283 if (reverse_bytes)
3284 {
3285 /* We don't handle leftover bytes (too many possible behaviors,
3286 and we don't know what the user wants). The section length
3287 must be a multiple of the number of bytes to swap. */
3288 if ((size % reverse_bytes) == 0)
3289 {
3290 unsigned long i, j;
3291 bfd_byte b;
3292
3293 for (i = 0; i < size; i += reverse_bytes)
3294 for (j = 0; j < (unsigned long)(reverse_bytes / 2); j++)
3295 {
3296 bfd_byte *m = (bfd_byte *) memhunk;
3297
3298 b = m[i + j];
3299 m[i + j] = m[(i + reverse_bytes) - (j + 1)];
3300 m[(i + reverse_bytes) - (j + 1)] = b;
3301 }
3302 }
3303 else
3304 /* User must pad the section up in order to do this. */
3305 fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
3306 bfd_section_name (ibfd, isection), reverse_bytes);
3307 }
3308
3309 if (copy_byte >= 0)
3310 {
3311 /* Keep only every `copy_byte'th byte in MEMHUNK. */
3312 char *from = (char *) memhunk + copy_byte;
3313 char *to = (char *) memhunk;
3314 char *end = (char *) memhunk + size;
3315 int i;
3316
3317 for (; from < end; from += interleave)
3318 for (i = 0; i < copy_width; i++)
3319 {
3320 if (&from[i] >= end)
3321 break;
3322 *to++ = from[i];
3323 }
3324
3325 size = (size + interleave - 1 - copy_byte) / interleave * copy_width;
3326 osection->lma /= interleave;
3327 }
3328
3329 if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
3330 {
3331 status = 1;
3332 bfd_nonfatal_message (NULL, obfd, osection, NULL);
3333 return;
3334 }
3335 free (memhunk);
3336 }
3337 else if ((p = find_section_list (bfd_get_section_name (ibfd, isection),
3338 FALSE, SECTION_CONTEXT_SET_FLAGS)) != NULL
3339 && (p->flags & SEC_HAS_CONTENTS) != 0)
3340 {
3341 void *memhunk = xmalloc (size);
3342
3343 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
3344 flag--they can just remove the section entirely and add it
3345 back again. However, we do permit them to turn on the
3346 SEC_HAS_CONTENTS flag, and take it to mean that the section
3347 contents should be zeroed out. */
3348
3349 memset (memhunk, 0, size);
3350 if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size))
3351 {
3352 status = 1;
3353 bfd_nonfatal_message (NULL, obfd, osection, NULL);
3354 return;
3355 }
3356 free (memhunk);
3357 }
3358 }
3359
3360 /* Get all the sections. This is used when --gap-fill or --pad-to is
3361 used. */
3362
3363 static void
3364 get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg)
3365 {
3366 asection ***secppp = (asection ***) secppparg;
3367
3368 **secppp = osection;
3369 ++(*secppp);
3370 }
3371
3372 /* Sort sections by VMA. This is called via qsort, and is used when
3373 --gap-fill or --pad-to is used. We force non loadable or empty
3374 sections to the front, where they are easier to ignore. */
3375
3376 static int
3377 compare_section_lma (const void *arg1, const void *arg2)
3378 {
3379 const asection *const *sec1 = (const asection * const *) arg1;
3380 const asection *const *sec2 = (const asection * const *) arg2;
3381 flagword flags1, flags2;
3382
3383 /* Sort non loadable sections to the front. */
3384 flags1 = (*sec1)->flags;
3385 flags2 = (*sec2)->flags;
3386 if ((flags1 & SEC_HAS_CONTENTS) == 0
3387 || (flags1 & SEC_LOAD) == 0)
3388 {
3389 if ((flags2 & SEC_HAS_CONTENTS) != 0
3390 && (flags2 & SEC_LOAD) != 0)
3391 return -1;
3392 }
3393 else
3394 {
3395 if ((flags2 & SEC_HAS_CONTENTS) == 0
3396 || (flags2 & SEC_LOAD) == 0)
3397 return 1;
3398 }
3399
3400 /* Sort sections by LMA. */
3401 if ((*sec1)->lma > (*sec2)->lma)
3402 return 1;
3403 else if ((*sec1)->lma < (*sec2)->lma)
3404 return -1;
3405
3406 /* Sort sections with the same LMA by size. */
3407 if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2))
3408 return 1;
3409 else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2))
3410 return -1;
3411
3412 return 0;
3413 }
3414
3415 /* Mark all the symbols which will be used in output relocations with
3416 the BSF_KEEP flag so that those symbols will not be stripped.
3417
3418 Ignore relocations which will not appear in the output file. */
3419
3420 static void
3421 mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg)
3422 {
3423 asymbol **symbols = (asymbol **) symbolsarg;
3424 long relsize;
3425 arelent **relpp;
3426 long relcount, i;
3427
3428 /* Ignore an input section with no corresponding output section. */
3429 if (isection->output_section == NULL)
3430 return;
3431
3432 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
3433 if (relsize < 0)
3434 {
3435 /* Do not complain if the target does not support relocations. */
3436 if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
3437 return;
3438 bfd_fatal (bfd_get_filename (ibfd));
3439 }
3440
3441 if (relsize == 0)
3442 return;
3443
3444 relpp = (arelent **) xmalloc (relsize);
3445 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols);
3446 if (relcount < 0)
3447 bfd_fatal (bfd_get_filename (ibfd));
3448
3449 /* Examine each symbol used in a relocation. If it's not one of the
3450 special bfd section symbols, then mark it with BSF_KEEP. */
3451 for (i = 0; i < relcount; i++)
3452 {
3453 if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
3454 && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
3455 && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)
3456 (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP;
3457 }
3458
3459 if (relpp != NULL)
3460 free (relpp);
3461 }
3462
3463 /* Write out debugging information. */
3464
3465 static bfd_boolean
3466 write_debugging_info (bfd *obfd, void *dhandle,
3467 long *symcountp ATTRIBUTE_UNUSED,
3468 asymbol ***symppp ATTRIBUTE_UNUSED)
3469 {
3470 if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour)
3471 return write_ieee_debugging_info (obfd, dhandle);
3472
3473 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
3474 || bfd_get_flavour (obfd) == bfd_target_elf_flavour)
3475 {
3476 bfd_byte *syms, *strings;
3477 bfd_size_type symsize, stringsize;
3478 asection *stabsec, *stabstrsec;
3479 flagword flags;
3480
3481 if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms,
3482 &symsize, &strings,
3483 &stringsize))
3484 return FALSE;
3485
3486 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING;
3487 stabsec = bfd_make_section_with_flags (obfd, ".stab", flags);
3488 stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags);
3489 if (stabsec == NULL
3490 || stabstrsec == NULL
3491 || ! bfd_set_section_size (obfd, stabsec, symsize)
3492 || ! bfd_set_section_size (obfd, stabstrsec, stringsize)
3493 || ! bfd_set_section_alignment (obfd, stabsec, 2)
3494 || ! bfd_set_section_alignment (obfd, stabstrsec, 0))
3495 {
3496 bfd_nonfatal_message (NULL, obfd, NULL,
3497 _("can't create debugging section"));
3498 return FALSE;
3499 }
3500
3501 /* We can get away with setting the section contents now because
3502 the next thing the caller is going to do is copy over the
3503 real sections. We may someday have to split the contents
3504 setting out of this function. */
3505 if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize)
3506 || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0,
3507 stringsize))
3508 {
3509 bfd_nonfatal_message (NULL, obfd, NULL,
3510 _("can't set debugging section contents"));
3511 return FALSE;
3512 }
3513
3514 return TRUE;
3515 }
3516
3517 bfd_nonfatal_message (NULL, obfd, NULL,
3518 _("don't know how to write debugging information for %s"),
3519 bfd_get_target (obfd));
3520 return FALSE;
3521 }
3522
3523 /* If neither -D nor -U was specified explicitly,
3524 then use the configured default. */
3525 static void
3526 default_deterministic (void)
3527 {
3528 if (deterministic < 0)
3529 deterministic = DEFAULT_AR_DETERMINISTIC;
3530 }
3531
3532 static int
3533 strip_main (int argc, char *argv[])
3534 {
3535 char *input_target = NULL;
3536 char *output_target = NULL;
3537 bfd_boolean show_version = FALSE;
3538 bfd_boolean formats_info = FALSE;
3539 int c;
3540 int i;
3541 char *output_file = NULL;
3542
3543 while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvwDU",
3544 strip_options, (int *) 0)) != EOF)
3545 {
3546 switch (c)
3547 {
3548 case 'I':
3549 input_target = optarg;
3550 break;
3551 case 'O':
3552 output_target = optarg;
3553 break;
3554 case 'F':
3555 input_target = output_target = optarg;
3556 break;
3557 case 'R':
3558 find_section_list (optarg, TRUE, SECTION_CONTEXT_REMOVE);
3559 sections_removed = TRUE;
3560 break;
3561 case 's':
3562 strip_symbols = STRIP_ALL;
3563 break;
3564 case 'S':
3565 case 'g':
3566 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
3567 strip_symbols = STRIP_DEBUG;
3568 break;
3569 case OPTION_STRIP_DWO:
3570 strip_symbols = STRIP_DWO;
3571 break;
3572 case OPTION_STRIP_UNNEEDED:
3573 strip_symbols = STRIP_UNNEEDED;
3574 break;
3575 case 'K':
3576 add_specific_symbol (optarg, keep_specific_htab);
3577 break;
3578 case 'N':
3579 add_specific_symbol (optarg, strip_specific_htab);
3580 break;
3581 case 'o':
3582 output_file = optarg;
3583 break;
3584 case 'p':
3585 preserve_dates = TRUE;
3586 break;
3587 case 'D':
3588 deterministic = TRUE;
3589 break;
3590 case 'U':
3591 deterministic = FALSE;
3592 break;
3593 case 'x':
3594 discard_locals = LOCALS_ALL;
3595 break;
3596 case 'X':
3597 discard_locals = LOCALS_START_L;
3598 break;
3599 case 'v':
3600 verbose = TRUE;
3601 break;
3602 case 'V':
3603 show_version = TRUE;
3604 break;
3605 case OPTION_FORMATS_INFO:
3606 formats_info = TRUE;
3607 break;
3608 case OPTION_ONLY_KEEP_DEBUG:
3609 strip_symbols = STRIP_NONDEBUG;
3610 break;
3611 case OPTION_KEEP_FILE_SYMBOLS:
3612 keep_file_symbols = 1;
3613 break;
3614 case 0:
3615 /* We've been given a long option. */
3616 break;
3617 case 'w':
3618 wildcard = TRUE;
3619 break;
3620 case 'H':
3621 case 'h':
3622 strip_usage (stdout, 0);
3623 default:
3624 strip_usage (stderr, 1);
3625 }
3626 }
3627
3628 if (formats_info)
3629 {
3630 display_info ();
3631 return 0;
3632 }
3633
3634 if (show_version)
3635 print_version ("strip");
3636
3637 default_deterministic ();
3638
3639 /* Default is to strip all symbols. */
3640 if (strip_symbols == STRIP_UNDEF
3641 && discard_locals == LOCALS_UNDEF
3642 && htab_elements (strip_specific_htab) == 0)
3643 strip_symbols = STRIP_ALL;
3644
3645 if (output_target == NULL)
3646 output_target = input_target;
3647
3648 i = optind;
3649 if (i == argc
3650 || (output_file != NULL && (i + 1) < argc))
3651 strip_usage (stderr, 1);
3652
3653 for (; i < argc; i++)
3654 {
3655 int hold_status = status;
3656 struct stat statbuf;
3657 char *tmpname;
3658
3659 if (get_file_size (argv[i]) < 1)
3660 {
3661 status = 1;
3662 continue;
3663 }
3664
3665 if (preserve_dates)
3666 /* No need to check the return value of stat().
3667 It has already been checked in get_file_size(). */
3668 stat (argv[i], &statbuf);
3669
3670 if (output_file == NULL
3671 || filename_cmp (argv[i], output_file) == 0)
3672 tmpname = make_tempname (argv[i]);
3673 else
3674 tmpname = output_file;
3675
3676 if (tmpname == NULL)
3677 {
3678 bfd_nonfatal_message (argv[i], NULL, NULL,
3679 _("could not create temporary file to hold stripped copy"));
3680 status = 1;
3681 continue;
3682 }
3683
3684 status = 0;
3685 copy_file (argv[i], tmpname, input_target, output_target, NULL);
3686 if (status == 0)
3687 {
3688 if (preserve_dates)
3689 set_times (tmpname, &statbuf);
3690 if (output_file != tmpname)
3691 status = (smart_rename (tmpname,
3692 output_file ? output_file : argv[i],
3693 preserve_dates) != 0);
3694 if (status == 0)
3695 status = hold_status;
3696 }
3697 else
3698 unlink_if_ordinary (tmpname);
3699 if (output_file != tmpname)
3700 free (tmpname);
3701 }
3702
3703 return status;
3704 }
3705
3706 /* Set up PE subsystem. */
3707
3708 static void
3709 set_pe_subsystem (const char *s)
3710 {
3711 const char *version, *subsystem;
3712 size_t i;
3713 static const struct
3714 {
3715 const char *name;
3716 const char set_def;
3717 const short value;
3718 }
3719 v[] =
3720 {
3721 { "native", 0, IMAGE_SUBSYSTEM_NATIVE },
3722 { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI },
3723 { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI },
3724 { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI },
3725 { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI },
3726 { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION },
3727 { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER },
3728 { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER },
3729 { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER },
3730 { "xbox", 0, IMAGE_SUBSYSTEM_XBOX }
3731 };
3732 short value;
3733 char *copy;
3734 int set_def = -1;
3735
3736 /* Check for the presence of a version number. */
3737 version = strchr (s, ':');
3738 if (version == NULL)
3739 subsystem = s;
3740 else
3741 {
3742 int len = version - s;
3743 copy = xstrdup (s);
3744 subsystem = copy;
3745 copy[len] = '\0';
3746 version = copy + 1 + len;
3747 pe_major_subsystem_version = strtoul (version, &copy, 0);
3748 if (*copy == '.')
3749 pe_minor_subsystem_version = strtoul (copy + 1, &copy, 0);
3750 if (*copy != '\0')
3751 non_fatal (_("%s: bad version in PE subsystem"), s);
3752 }
3753
3754 /* Check for numeric subsystem. */
3755 value = (short) strtol (subsystem, &copy, 0);
3756 if (*copy == '\0')
3757 {
3758 for (i = 0; i < ARRAY_SIZE (v); i++)
3759 if (v[i].value == value)
3760 {
3761 pe_subsystem = value;
3762 set_def = v[i].set_def;
3763 break;
3764 }
3765 }
3766 else
3767 {
3768 /* Search for subsystem by name. */
3769 for (i = 0; i < ARRAY_SIZE (v); i++)
3770 if (strcmp (subsystem, v[i].name) == 0)
3771 {
3772 pe_subsystem = v[i].value;
3773 set_def = v[i].set_def;
3774 break;
3775 }
3776 }
3777
3778 switch (set_def)
3779 {
3780 case -1:
3781 fatal (_("unknown PE subsystem: %s"), s);
3782 break;
3783 case 0:
3784 break;
3785 default:
3786 if (pe_file_alignment == (bfd_vma) -1)
3787 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
3788 if (pe_section_alignment == (bfd_vma) -1)
3789 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
3790 break;
3791 }
3792 if (s != subsystem)
3793 free ((char *) subsystem);
3794 }
3795
3796 /* Convert EFI target to PEI target. */
3797
3798 static void
3799 convert_efi_target (char *efi)
3800 {
3801 efi[0] = 'p';
3802 efi[1] = 'e';
3803 efi[2] = 'i';
3804
3805 if (strcmp (efi + 4, "ia32") == 0)
3806 {
3807 /* Change ia32 to i386. */
3808 efi[5]= '3';
3809 efi[6]= '8';
3810 efi[7]= '6';
3811 }
3812 else if (strcmp (efi + 4, "x86_64") == 0)
3813 {
3814 /* Change x86_64 to x86-64. */
3815 efi[7] = '-';
3816 }
3817 }
3818
3819 /* Allocate and return a pointer to a struct section_add, initializing the
3820 structure using ARG, a string in the format "sectionname=filename".
3821 The returned structure will have its next pointer set to NEXT. The
3822 OPTION field is the name of the command line option currently being
3823 parsed, and is only used if an error needs to be reported. */
3824
3825 static struct section_add *
3826 init_section_add (const char *arg,
3827 struct section_add *next,
3828 const char *option)
3829 {
3830 struct section_add *pa;
3831 const char *s;
3832
3833 s = strchr (arg, '=');
3834 if (s == NULL)
3835 fatal (_("bad format for %s"), option);
3836
3837 pa = (struct section_add *) xmalloc (sizeof (struct section_add));
3838 pa->name = xstrndup (arg, s - arg);
3839 pa->filename = s + 1;
3840 pa->next = next;
3841 pa->contents = NULL;
3842 pa->size = 0;
3843
3844 return pa;
3845 }
3846
3847 /* Load the file specified in PA, allocating memory to hold the file
3848 contents, and store a pointer to the allocated memory in the contents
3849 field of PA. The size field of PA is also updated. All errors call
3850 FATAL. */
3851
3852 static void
3853 section_add_load_file (struct section_add *pa)
3854 {
3855 size_t off, alloc;
3856 FILE *f;
3857
3858 /* We don't use get_file_size so that we can do
3859 --add-section .note.GNU_stack=/dev/null
3860 get_file_size doesn't work on /dev/null. */
3861
3862 f = fopen (pa->filename, FOPEN_RB);
3863 if (f == NULL)
3864 fatal (_("cannot open: %s: %s"),
3865 pa->filename, strerror (errno));
3866
3867 off = 0;
3868 alloc = 4096;
3869 pa->contents = (bfd_byte *) xmalloc (alloc);
3870 while (!feof (f))
3871 {
3872 off_t got;
3873
3874 if (off == alloc)
3875 {
3876 alloc <<= 1;
3877 pa->contents = (bfd_byte *) xrealloc (pa->contents, alloc);
3878 }
3879
3880 got = fread (pa->contents + off, 1, alloc - off, f);
3881 if (ferror (f))
3882 fatal (_("%s: fread failed"), pa->filename);
3883
3884 off += got;
3885 }
3886
3887 pa->size = off;
3888
3889 fclose (f);
3890 }
3891
3892 static int
3893 copy_main (int argc, char *argv[])
3894 {
3895 char *input_filename = NULL;
3896 char *output_filename = NULL;
3897 char *tmpname;
3898 char *input_target = NULL;
3899 char *output_target = NULL;
3900 bfd_boolean show_version = FALSE;
3901 bfd_boolean change_warn = TRUE;
3902 bfd_boolean formats_info = FALSE;
3903 int c;
3904 struct stat statbuf;
3905 const bfd_arch_info_type *input_arch = NULL;
3906
3907 while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:wDU",
3908 copy_options, (int *) 0)) != EOF)
3909 {
3910 switch (c)
3911 {
3912 case 'b':
3913 copy_byte = atoi (optarg);
3914 if (copy_byte < 0)
3915 fatal (_("byte number must be non-negative"));
3916 break;
3917
3918 case 'B':
3919 input_arch = bfd_scan_arch (optarg);
3920 if (input_arch == NULL)
3921 fatal (_("architecture %s unknown"), optarg);
3922 break;
3923
3924 case 'i':
3925 if (optarg)
3926 {
3927 interleave = atoi (optarg);
3928 if (interleave < 1)
3929 fatal (_("interleave must be positive"));
3930 }
3931 else
3932 interleave = 4;
3933 break;
3934
3935 case OPTION_INTERLEAVE_WIDTH:
3936 copy_width = atoi (optarg);
3937 if (copy_width < 1)
3938 fatal(_("interleave width must be positive"));
3939 break;
3940
3941 case 'I':
3942 case 's': /* "source" - 'I' is preferred */
3943 input_target = optarg;
3944 break;
3945
3946 case 'O':
3947 case 'd': /* "destination" - 'O' is preferred */
3948 output_target = optarg;
3949 break;
3950
3951 case 'F':
3952 input_target = output_target = optarg;
3953 break;
3954
3955 case 'j':
3956 find_section_list (optarg, TRUE, SECTION_CONTEXT_COPY);
3957 sections_copied = TRUE;
3958 break;
3959
3960 case 'R':
3961 find_section_list (optarg, TRUE, SECTION_CONTEXT_REMOVE);
3962 sections_removed = TRUE;
3963 break;
3964
3965 case 'S':
3966 strip_symbols = STRIP_ALL;
3967 break;
3968
3969 case 'g':
3970 strip_symbols = STRIP_DEBUG;
3971 break;
3972
3973 case OPTION_STRIP_DWO:
3974 strip_symbols = STRIP_DWO;
3975 break;
3976
3977 case OPTION_STRIP_UNNEEDED:
3978 strip_symbols = STRIP_UNNEEDED;
3979 break;
3980
3981 case OPTION_ONLY_KEEP_DEBUG:
3982 strip_symbols = STRIP_NONDEBUG;
3983 break;
3984
3985 case OPTION_KEEP_FILE_SYMBOLS:
3986 keep_file_symbols = 1;
3987 break;
3988
3989 case OPTION_ADD_GNU_DEBUGLINK:
3990 long_section_names = ENABLE ;
3991 gnu_debuglink_filename = optarg;
3992 break;
3993
3994 case 'K':
3995 add_specific_symbol (optarg, keep_specific_htab);
3996 break;
3997
3998 case 'N':
3999 add_specific_symbol (optarg, strip_specific_htab);
4000 break;
4001
4002 case OPTION_STRIP_UNNEEDED_SYMBOL:
4003 add_specific_symbol (optarg, strip_unneeded_htab);
4004 break;
4005
4006 case 'L':
4007 add_specific_symbol (optarg, localize_specific_htab);
4008 break;
4009
4010 case OPTION_GLOBALIZE_SYMBOL:
4011 add_specific_symbol (optarg, globalize_specific_htab);
4012 break;
4013
4014 case 'G':
4015 add_specific_symbol (optarg, keepglobal_specific_htab);
4016 break;
4017
4018 case 'W':
4019 add_specific_symbol (optarg, weaken_specific_htab);
4020 break;
4021
4022 case 'p':
4023 preserve_dates = TRUE;
4024 break;
4025
4026 case 'D':
4027 deterministic = TRUE;
4028 break;
4029
4030 case 'U':
4031 deterministic = FALSE;
4032 break;
4033
4034 case 'w':
4035 wildcard = TRUE;
4036 break;
4037
4038 case 'x':
4039 discard_locals = LOCALS_ALL;
4040 break;
4041
4042 case 'X':
4043 discard_locals = LOCALS_START_L;
4044 break;
4045
4046 case 'v':
4047 verbose = TRUE;
4048 break;
4049
4050 case 'V':
4051 show_version = TRUE;
4052 break;
4053
4054 case OPTION_FORMATS_INFO:
4055 formats_info = TRUE;
4056 break;
4057
4058 case OPTION_WEAKEN:
4059 weaken = TRUE;
4060 break;
4061
4062 case OPTION_ADD_SECTION:
4063 add_sections = init_section_add (optarg, add_sections,
4064 "--add-section");
4065 section_add_load_file (add_sections);
4066 break;
4067
4068 case OPTION_UPDATE_SECTION:
4069 update_sections = init_section_add (optarg, update_sections,
4070 "--update-section");
4071 section_add_load_file (update_sections);
4072 break;
4073
4074 case OPTION_DUMP_SECTION:
4075 dump_sections = init_section_add (optarg, dump_sections,
4076 "--dump-section");
4077 break;
4078
4079 case OPTION_ADD_SYMBOL:
4080 {
4081 char *s, *t;
4082 struct addsym_node *newsym = xmalloc (sizeof *newsym);
4083
4084 newsym->next = NULL;
4085 s = strchr (optarg, '=');
4086 if (s == NULL)
4087 fatal (_("bad format for %s"), "--add-symbol");
4088 t = strchr (s + 1, ':');
4089
4090 newsym->symdef = strndup (optarg, s - optarg);
4091 if (t)
4092 {
4093 newsym->section = strndup (s + 1, t - (s + 1));
4094 newsym->symval = strtol (t + 1, NULL, 0);
4095 }
4096 else
4097 {
4098 newsym->section = NULL;
4099 newsym->symval = strtol (s + 1, NULL, 0);
4100 t = s;
4101 }
4102
4103 t = strchr (t + 1, ',');
4104 if (t)
4105 newsym->flags = parse_symflags (t+1, &newsym->othersym);
4106 else
4107 newsym->flags = BSF_GLOBAL;
4108
4109 /* Keep 'othersym' symbols at the front of the list. */
4110 if (newsym->othersym)
4111 {
4112 newsym->next = add_sym_list;
4113 if (!add_sym_list)
4114 add_sym_tail = &newsym->next;
4115 add_sym_list = newsym;
4116 }
4117 else
4118 {
4119 *add_sym_tail = newsym;
4120 add_sym_tail = &newsym->next;
4121 }
4122 add_symbols++;
4123 }
4124 break;
4125
4126 case OPTION_CHANGE_START:
4127 change_start = parse_vma (optarg, "--change-start");
4128 break;
4129
4130 case OPTION_CHANGE_SECTION_ADDRESS:
4131 case OPTION_CHANGE_SECTION_LMA:
4132 case OPTION_CHANGE_SECTION_VMA:
4133 {
4134 struct section_list * p;
4135 unsigned int context = 0;
4136 const char *s;
4137 int len;
4138 char *name;
4139 char *option = NULL;
4140 bfd_vma val;
4141
4142 switch (c)
4143 {
4144 case OPTION_CHANGE_SECTION_ADDRESS:
4145 option = "--change-section-address";
4146 context = SECTION_CONTEXT_ALTER_LMA | SECTION_CONTEXT_ALTER_VMA;
4147 break;
4148 case OPTION_CHANGE_SECTION_LMA:
4149 option = "--change-section-lma";
4150 context = SECTION_CONTEXT_ALTER_LMA;
4151 break;
4152 case OPTION_CHANGE_SECTION_VMA:
4153 option = "--change-section-vma";
4154 context = SECTION_CONTEXT_ALTER_VMA;
4155 break;
4156 }
4157
4158 s = strchr (optarg, '=');
4159 if (s == NULL)
4160 {
4161 s = strchr (optarg, '+');
4162 if (s == NULL)
4163 {
4164 s = strchr (optarg, '-');
4165 if (s == NULL)
4166 fatal (_("bad format for %s"), option);
4167 }
4168 }
4169 else
4170 {
4171 /* Correct the context. */
4172 switch (c)
4173 {
4174 case OPTION_CHANGE_SECTION_ADDRESS:
4175 context = SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_SET_VMA;
4176 break;
4177 case OPTION_CHANGE_SECTION_LMA:
4178 context = SECTION_CONTEXT_SET_LMA;
4179 break;
4180 case OPTION_CHANGE_SECTION_VMA:
4181 context = SECTION_CONTEXT_SET_VMA;
4182 break;
4183 }
4184 }
4185
4186 len = s - optarg;
4187 name = (char *) xmalloc (len + 1);
4188 strncpy (name, optarg, len);
4189 name[len] = '\0';
4190
4191 p = find_section_list (name, TRUE, context);
4192
4193 val = parse_vma (s + 1, option);
4194 if (*s == '-')
4195 val = - val;
4196
4197 switch (c)
4198 {
4199 case OPTION_CHANGE_SECTION_ADDRESS:
4200 p->vma_val = val;
4201 /* Drop through. */
4202
4203 case OPTION_CHANGE_SECTION_LMA:
4204 p->lma_val = val;
4205 break;
4206
4207 case OPTION_CHANGE_SECTION_VMA:
4208 p->vma_val = val;
4209 break;
4210 }
4211 }
4212 break;
4213
4214 case OPTION_CHANGE_ADDRESSES:
4215 change_section_address = parse_vma (optarg, "--change-addresses");
4216 change_start = change_section_address;
4217 break;
4218
4219 case OPTION_CHANGE_WARNINGS:
4220 change_warn = TRUE;
4221 break;
4222
4223 case OPTION_CHANGE_LEADING_CHAR:
4224 change_leading_char = TRUE;
4225 break;
4226
4227 case OPTION_COMPRESS_DEBUG_SECTIONS:
4228 if (optarg)
4229 {
4230 if (strcasecmp (optarg, "none") == 0)
4231 do_debug_sections = decompress;
4232 else if (strcasecmp (optarg, "zlib") == 0)
4233 do_debug_sections = compress_zlib;
4234 else if (strcasecmp (optarg, "zlib-gnu") == 0)
4235 do_debug_sections = compress_gnu_zlib;
4236 else if (strcasecmp (optarg, "zlib-gabi") == 0)
4237 do_debug_sections = compress_gabi_zlib;
4238 else
4239 fatal (_("unrecognized --compress-debug-sections type `%s'"),
4240 optarg);
4241 }
4242 else
4243 do_debug_sections = compress;
4244 break;
4245
4246 case OPTION_DEBUGGING:
4247 convert_debugging = TRUE;
4248 break;
4249
4250 case OPTION_DECOMPRESS_DEBUG_SECTIONS:
4251 do_debug_sections = decompress;
4252 break;
4253
4254 case OPTION_GAP_FILL:
4255 {
4256 bfd_vma gap_fill_vma;
4257
4258 gap_fill_vma = parse_vma (optarg, "--gap-fill");
4259 gap_fill = (bfd_byte) gap_fill_vma;
4260 if ((bfd_vma) gap_fill != gap_fill_vma)
4261 {
4262 char buff[20];
4263
4264 sprintf_vma (buff, gap_fill_vma);
4265
4266 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
4267 buff, gap_fill);
4268 }
4269 gap_fill_set = TRUE;
4270 }
4271 break;
4272
4273 case OPTION_NO_CHANGE_WARNINGS:
4274 change_warn = FALSE;
4275 break;
4276
4277 case OPTION_PAD_TO:
4278 pad_to = parse_vma (optarg, "--pad-to");
4279 pad_to_set = TRUE;
4280 break;
4281
4282 case OPTION_REMOVE_LEADING_CHAR:
4283 remove_leading_char = TRUE;
4284 break;
4285
4286 case OPTION_REDEFINE_SYM:
4287 {
4288 /* Push this redefinition onto redefine_symbol_list. */
4289
4290 int len;
4291 const char *s;
4292 const char *nextarg;
4293 char *source, *target;
4294
4295 s = strchr (optarg, '=');
4296 if (s == NULL)
4297 fatal (_("bad format for %s"), "--redefine-sym");
4298
4299 len = s - optarg;
4300 source = (char *) xmalloc (len + 1);
4301 strncpy (source, optarg, len);
4302 source[len] = '\0';
4303
4304 nextarg = s + 1;
4305 len = strlen (nextarg);
4306 target = (char *) xmalloc (len + 1);
4307 strcpy (target, nextarg);
4308
4309 redefine_list_append ("--redefine-sym", source, target);
4310
4311 free (source);
4312 free (target);
4313 }
4314 break;
4315
4316 case OPTION_REDEFINE_SYMS:
4317 add_redefine_syms_file (optarg);
4318 break;
4319
4320 case OPTION_SET_SECTION_FLAGS:
4321 {
4322 struct section_list *p;
4323 const char *s;
4324 int len;
4325 char *name;
4326
4327 s = strchr (optarg, '=');
4328 if (s == NULL)
4329 fatal (_("bad format for %s"), "--set-section-flags");
4330
4331 len = s - optarg;
4332 name = (char *) xmalloc (len + 1);
4333 strncpy (name, optarg, len);
4334 name[len] = '\0';
4335
4336 p = find_section_list (name, TRUE, SECTION_CONTEXT_SET_FLAGS);
4337
4338 p->flags = parse_flags (s + 1);
4339 }
4340 break;
4341
4342 case OPTION_RENAME_SECTION:
4343 {
4344 flagword flags;
4345 const char *eq, *fl;
4346 char *old_name;
4347 char *new_name;
4348 unsigned int len;
4349
4350 eq = strchr (optarg, '=');
4351 if (eq == NULL)
4352 fatal (_("bad format for %s"), "--rename-section");
4353
4354 len = eq - optarg;
4355 if (len == 0)
4356 fatal (_("bad format for %s"), "--rename-section");
4357
4358 old_name = (char *) xmalloc (len + 1);
4359 strncpy (old_name, optarg, len);
4360 old_name[len] = 0;
4361
4362 eq++;
4363 fl = strchr (eq, ',');
4364 if (fl)
4365 {
4366 flags = parse_flags (fl + 1);
4367 len = fl - eq;
4368 }
4369 else
4370 {
4371 flags = -1;
4372 len = strlen (eq);
4373 }
4374
4375 if (len == 0)
4376 fatal (_("bad format for %s"), "--rename-section");
4377
4378 new_name = (char *) xmalloc (len + 1);
4379 strncpy (new_name, eq, len);
4380 new_name[len] = 0;
4381
4382 add_section_rename (old_name, new_name, flags);
4383 }
4384 break;
4385
4386 case OPTION_SET_START:
4387 set_start = parse_vma (optarg, "--set-start");
4388 set_start_set = TRUE;
4389 break;
4390
4391 case OPTION_SREC_LEN:
4392 Chunk = parse_vma (optarg, "--srec-len");
4393 break;
4394
4395 case OPTION_SREC_FORCES3:
4396 S3Forced = TRUE;
4397 break;
4398
4399 case OPTION_STRIP_SYMBOLS:
4400 add_specific_symbols (optarg, strip_specific_htab);
4401 break;
4402
4403 case OPTION_STRIP_UNNEEDED_SYMBOLS:
4404 add_specific_symbols (optarg, strip_unneeded_htab);
4405 break;
4406
4407 case OPTION_KEEP_SYMBOLS:
4408 add_specific_symbols (optarg, keep_specific_htab);
4409 break;
4410
4411 case OPTION_LOCALIZE_HIDDEN:
4412 localize_hidden = TRUE;
4413 break;
4414
4415 case OPTION_LOCALIZE_SYMBOLS:
4416 add_specific_symbols (optarg, localize_specific_htab);
4417 break;
4418
4419 case OPTION_LONG_SECTION_NAMES:
4420 if (!strcmp ("enable", optarg))
4421 long_section_names = ENABLE;
4422 else if (!strcmp ("disable", optarg))
4423 long_section_names = DISABLE;
4424 else if (!strcmp ("keep", optarg))
4425 long_section_names = KEEP;
4426 else
4427 fatal (_("unknown long section names option '%s'"), optarg);
4428 break;
4429
4430 case OPTION_GLOBALIZE_SYMBOLS:
4431 add_specific_symbols (optarg, globalize_specific_htab);
4432 break;
4433
4434 case OPTION_KEEPGLOBAL_SYMBOLS:
4435 add_specific_symbols (optarg, keepglobal_specific_htab);
4436 break;
4437
4438 case OPTION_WEAKEN_SYMBOLS:
4439 add_specific_symbols (optarg, weaken_specific_htab);
4440 break;
4441
4442 case OPTION_ALT_MACH_CODE:
4443 use_alt_mach_code = strtoul (optarg, NULL, 0);
4444 if (use_alt_mach_code == 0)
4445 fatal (_("unable to parse alternative machine code"));
4446 break;
4447
4448 case OPTION_PREFIX_SYMBOLS:
4449 prefix_symbols_string = optarg;
4450 break;
4451
4452 case OPTION_PREFIX_SECTIONS:
4453 prefix_sections_string = optarg;
4454 break;
4455
4456 case OPTION_PREFIX_ALLOC_SECTIONS:
4457 prefix_alloc_sections_string = optarg;
4458 break;
4459
4460 case OPTION_READONLY_TEXT:
4461 bfd_flags_to_set |= WP_TEXT;
4462 bfd_flags_to_clear &= ~WP_TEXT;
4463 break;
4464
4465 case OPTION_WRITABLE_TEXT:
4466 bfd_flags_to_clear |= WP_TEXT;
4467 bfd_flags_to_set &= ~WP_TEXT;
4468 break;
4469
4470 case OPTION_PURE:
4471 bfd_flags_to_set |= D_PAGED;
4472 bfd_flags_to_clear &= ~D_PAGED;
4473 break;
4474
4475 case OPTION_IMPURE:
4476 bfd_flags_to_clear |= D_PAGED;
4477 bfd_flags_to_set &= ~D_PAGED;
4478 break;
4479
4480 case OPTION_EXTRACT_DWO:
4481 strip_symbols = STRIP_NONDWO;
4482 break;
4483
4484 case OPTION_EXTRACT_SYMBOL:
4485 extract_symbol = TRUE;
4486 break;
4487
4488 case OPTION_REVERSE_BYTES:
4489 {
4490 int prev = reverse_bytes;
4491
4492 reverse_bytes = atoi (optarg);
4493 if ((reverse_bytes <= 0) || ((reverse_bytes % 2) != 0))
4494 fatal (_("number of bytes to reverse must be positive and even"));
4495
4496 if (prev && prev != reverse_bytes)
4497 non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
4498 prev);
4499 break;
4500 }
4501
4502 case OPTION_FILE_ALIGNMENT:
4503 pe_file_alignment = parse_vma (optarg, "--file-alignment");
4504 break;
4505
4506 case OPTION_HEAP:
4507 {
4508 char *end;
4509 pe_heap_reserve = strtoul (optarg, &end, 0);
4510 if (end == optarg
4511 || (*end != '.' && *end != '\0'))
4512 non_fatal (_("%s: invalid reserve value for --heap"),
4513 optarg);
4514 else if (*end != '\0')
4515 {
4516 pe_heap_commit = strtoul (end + 1, &end, 0);
4517 if (*end != '\0')
4518 non_fatal (_("%s: invalid commit value for --heap"),
4519 optarg);
4520 }
4521 }
4522 break;
4523
4524 case OPTION_IMAGE_BASE:
4525 pe_image_base = parse_vma (optarg, "--image-base");
4526 break;
4527
4528 case OPTION_SECTION_ALIGNMENT:
4529 pe_section_alignment = parse_vma (optarg,
4530 "--section-alignment");
4531 break;
4532
4533 case OPTION_SUBSYSTEM:
4534 set_pe_subsystem (optarg);
4535 break;
4536
4537 case OPTION_STACK:
4538 {
4539 char *end;
4540 pe_stack_reserve = strtoul (optarg, &end, 0);
4541 if (end == optarg
4542 || (*end != '.' && *end != '\0'))
4543 non_fatal (_("%s: invalid reserve value for --stack"),
4544 optarg);
4545 else if (*end != '\0')
4546 {
4547 pe_stack_commit = strtoul (end + 1, &end, 0);
4548 if (*end != '\0')
4549 non_fatal (_("%s: invalid commit value for --stack"),
4550 optarg);
4551 }
4552 }
4553 break;
4554
4555 case 0:
4556 /* We've been given a long option. */
4557 break;
4558
4559 case 'H':
4560 case 'h':
4561 copy_usage (stdout, 0);
4562
4563 default:
4564 copy_usage (stderr, 1);
4565 }
4566 }
4567
4568 if (formats_info)
4569 {
4570 display_info ();
4571 return 0;
4572 }
4573
4574 if (show_version)
4575 print_version ("objcopy");
4576
4577 if (interleave && copy_byte == -1)
4578 fatal (_("interleave start byte must be set with --byte"));
4579
4580 if (copy_byte >= interleave)
4581 fatal (_("byte number must be less than interleave"));
4582
4583 if (copy_width > interleave - copy_byte)
4584 fatal (_("interleave width must be less than or equal to interleave - byte`"));
4585
4586 if (optind == argc || optind + 2 < argc)
4587 copy_usage (stderr, 1);
4588
4589 input_filename = argv[optind];
4590 if (optind + 1 < argc)
4591 output_filename = argv[optind + 1];
4592
4593 default_deterministic ();
4594
4595 /* Default is to strip no symbols. */
4596 if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF)
4597 strip_symbols = STRIP_NONE;
4598
4599 if (output_target == NULL)
4600 output_target = input_target;
4601
4602 /* Convert input EFI target to PEI target. */
4603 if (input_target != NULL
4604 && strncmp (input_target, "efi-", 4) == 0)
4605 {
4606 char *efi;
4607
4608 efi = xstrdup (output_target + 4);
4609 if (strncmp (efi, "bsdrv-", 6) == 0
4610 || strncmp (efi, "rtdrv-", 6) == 0)
4611 efi += 2;
4612 else if (strncmp (efi, "app-", 4) != 0)
4613 fatal (_("unknown input EFI target: %s"), input_target);
4614
4615 input_target = efi;
4616 convert_efi_target (efi);
4617 }
4618
4619 /* Convert output EFI target to PEI target. */
4620 if (output_target != NULL
4621 && strncmp (output_target, "efi-", 4) == 0)
4622 {
4623 char *efi;
4624
4625 efi = xstrdup (output_target + 4);
4626 if (strncmp (efi, "app-", 4) == 0)
4627 {
4628 if (pe_subsystem == -1)
4629 pe_subsystem = IMAGE_SUBSYSTEM_EFI_APPLICATION;
4630 }
4631 else if (strncmp (efi, "bsdrv-", 6) == 0)
4632 {
4633 if (pe_subsystem == -1)
4634 pe_subsystem = IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER;
4635 efi += 2;
4636 }
4637 else if (strncmp (efi, "rtdrv-", 6) == 0)
4638 {
4639 if (pe_subsystem == -1)
4640 pe_subsystem = IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER;
4641 efi += 2;
4642 }
4643 else
4644 fatal (_("unknown output EFI target: %s"), output_target);
4645
4646 if (pe_file_alignment == (bfd_vma) -1)
4647 pe_file_alignment = PE_DEF_FILE_ALIGNMENT;
4648 if (pe_section_alignment == (bfd_vma) -1)
4649 pe_section_alignment = PE_DEF_SECTION_ALIGNMENT;
4650
4651 output_target = efi;
4652 convert_efi_target (efi);
4653 }
4654
4655 if (preserve_dates)
4656 if (stat (input_filename, & statbuf) < 0)
4657 fatal (_("warning: could not locate '%s'. System error message: %s"),
4658 input_filename, strerror (errno));
4659
4660 /* If there is no destination file, or the source and destination files
4661 are the same, then create a temp and rename the result into the input. */
4662 if (output_filename == NULL
4663 || filename_cmp (input_filename, output_filename) == 0)
4664 tmpname = make_tempname (input_filename);
4665 else
4666 tmpname = output_filename;
4667
4668 if (tmpname == NULL)
4669 fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
4670 input_filename, strerror (errno));
4671
4672 copy_file (input_filename, tmpname, input_target, output_target, input_arch);
4673 if (status == 0)
4674 {
4675 if (preserve_dates)
4676 set_times (tmpname, &statbuf);
4677 if (tmpname != output_filename)
4678 status = (smart_rename (tmpname, input_filename,
4679 preserve_dates) != 0);
4680 }
4681 else
4682 unlink_if_ordinary (tmpname);
4683
4684 if (change_warn)
4685 {
4686 struct section_list *p;
4687
4688 for (p = change_sections; p != NULL; p = p->next)
4689 {
4690 if (! p->used)
4691 {
4692 if (p->context & (SECTION_CONTEXT_SET_VMA | SECTION_CONTEXT_ALTER_VMA))
4693 {
4694 char buff [20];
4695
4696 sprintf_vma (buff, p->vma_val);
4697
4698 /* xgettext:c-format */
4699 non_fatal (_("%s %s%c0x%s never used"),
4700 "--change-section-vma",
4701 p->pattern,
4702 p->context & SECTION_CONTEXT_SET_VMA ? '=' : '+',
4703 buff);
4704 }
4705
4706 if (p->context & (SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_ALTER_LMA))
4707 {
4708 char buff [20];
4709
4710 sprintf_vma (buff, p->lma_val);
4711
4712 /* xgettext:c-format */
4713 non_fatal (_("%s %s%c0x%s never used"),
4714 "--change-section-lma",
4715 p->pattern,
4716 p->context & SECTION_CONTEXT_SET_LMA ? '=' : '+',
4717 buff);
4718 }
4719 }
4720 }
4721 }
4722
4723 return 0;
4724 }
4725
4726 int
4727 main (int argc, char *argv[])
4728 {
4729 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
4730 setlocale (LC_MESSAGES, "");
4731 #endif
4732 #if defined (HAVE_SETLOCALE)
4733 setlocale (LC_CTYPE, "");
4734 #endif
4735 bindtextdomain (PACKAGE, LOCALEDIR);
4736 textdomain (PACKAGE);
4737
4738 program_name = argv[0];
4739 xmalloc_set_program_name (program_name);
4740
4741 START_PROGRESS (program_name, 0);
4742
4743 expandargv (&argc, &argv);
4744
4745 strip_symbols = STRIP_UNDEF;
4746 discard_locals = LOCALS_UNDEF;
4747
4748 bfd_init ();
4749 set_default_bfd_target ();
4750
4751 if (is_strip < 0)
4752 {
4753 int i = strlen (program_name);
4754 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
4755 /* Drop the .exe suffix, if any. */
4756 if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0)
4757 {
4758 i -= 4;
4759 program_name[i] = '\0';
4760 }
4761 #endif
4762 is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
4763 }
4764
4765 create_symbol_htabs ();
4766
4767 if (argv != NULL)
4768 bfd_set_error_program_name (argv[0]);
4769
4770 if (is_strip)
4771 strip_main (argc, argv);
4772 else
4773 copy_main (argc, argv);
4774
4775 END_PROGRESS (program_name);
4776
4777 return status;
4778 }
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